According to the Vedānta-sūtras (śāstra-yonitvāt), the Supreme Lord is the author of all revealed scriptures, and all revealed scriptures are for knowing the Supreme Lord. Veda means knowledge that leads to the Lord. The Vedas are made just to revive the forgotten consciousness of the conditioned souls, and any literature not meant for reviving God consciousness is rejected at once by the nārāyaṇa-para devotees.
(Srimad Bhagavatam----2:5:15----purport).

The word veda means "knowledge." Supreme knowledge consists of understanding the Supreme Personality of Godhead and our relationship with Him and acting according to that relationship. Action in accordance with the Vedic principles is called religion. Religion means following the orders of the Supreme Personality of Godhead. The Vedic principles are the injunctions given by the Supreme Personality of Godhead. Āryans are civilized human beings who have been following the Vedic principles since time immemorial.
(Sri Caitanya Caritamrta----2:19:146----purport).

So Nārada Muni became astonished that he, he was a learned scholar and brāhmaṇa, and he would take so much time, and the cobbler would be liberated in this life. "Oh, what is the reason, Sir?" So Nārāyaṇa gave him one needle, and He requested him that "When they inquire what Nārāyaṇa was doing, you can say that Nārāyaṇa was pulling one elephant through the hole of the needle, this side and that side," in this way. So when he came back, the brāhmaṇa said, "Sir, you are... I offer my respectful obeisances unto you and Nārāyaṇa. We cannot believe this, that through the needle or through the hole of a needle, a elephant is being passed, this side and that side." And when it was informed to the cobbler, he began to cry. He said, "Oh, my Nārāyaṇa is so powerful that He can do everything." He believed immediately that "Yes, for Nārāyaṇa it is possible to pull the elephant through the hole of the needle, this side and that." So Nārada Muni inquired, "How do you believe this? The other person, the brāhmaṇa, he's learned person. He did not believe. How do you believe it? What is your conviction?" He said, "Sir, I believe in this way, because I am sitting under this tree. This is a banyan tree. And so many," what is called, "figs are falling down. And each fig there are thousands of small seeds, and in each seed there is a banyan tree. So if Nārāyaṇa can keep thousands of banyan trees within this fig fruit, how it is not possible for Him to pull an elephant through the hole of a needle?"
So this is called faith. The faith is not blind. There is proof. He, the cobbler was not blindly believing that Nārāyaṇa was pulling an elephant through the hole of an needle, but he sees practically the potency, the power of the Lord, bījo 'haṁ sarva-bhūtānām (B.G.7:10), how He keeps all the potencies of the banyan tree within the seed. So otherwise there is no meaning, "all-powerful." He can do whatever He likes. Inconceivable. Śrīla Jīva Gosvāmī therefore explains that unless we believe (in the) inconceivable potency of the Lord, then we cannot understand that activities... Parāsya śaktir vividhaiva śrūyate, svābhāvikī-jñāna-bala-kriyā ca (CC.2:13:65-- purport). We cannot judge how things are happening, but we have to believe. Therefore Vedic knowledge is so important. We cannot make research. We cannot judge. Simply if we take the Vedic truths... Just like we have several times explained, the Vedas accept the cow dung pure, whereas the stool of other animal is impure. So we have to accept like that. So Veda-vāṇī. Veda-vāṇī means you cannot deny it. You cannot argue on it. You have to accept as it is. Therefore learned scholar, when he speaks something, he gives evidence from the Vedas, śruti, śruti-pramāṇa. That is the best evidence.
(Lecture on Nectar of Devotion).

A devotee must know the importance of simultaneously understanding Vedānta philosophy and chanting the holy names. If by studying Vedānta one becomes an impersonalist, he has not been able to understand Vedānta. This is confirmed in the Bhagavad-gītā (15.15). Vedānta means "the end of knowledge." The ultimate end of knowledge is knowledge of Kṛṣṇa, who is identical with His holy name. Cheap Vaiṣṇavas (sahajiyās) do not care to study the Vedānta philosophy as commented upon by the four ācāryas. In the Gauḍīya-sampradāya there is a Vedānta commentary called the Govinda-bhāṣya, but the sahajiyās consider such commentaries to be untouchable philosophical speculation, and they consider the ācāryas to be mixed devotees. Thus they clear their way to hell.
(Sri Caitanya Caritamrta---1:7:72-----purport).

The word vedānta means "the last word of Vedic knowledge," which is to understand Kṛṣṇa. As Krsna states in the Bhagavad-gītā (15.15), vedaiśca sarvair aham eva vedyaḥ: "By all the Vedas, I am to be known." When one actually comes to understand the Vedānta, he comes to know Kṛṣṇa and his relationship with Kṛṣṇa. And one who understands Kṛṣṇa understands everything. Moreover, the knower of Kṛṣṇa is always engaged in His transcendental loving service.
(Teachings of Lord Caitanya).

According to the Skanda and Vāyu Purāṇas, the word sūtra refers to a condensed work which carries meaning and import of immeasurable strength without any mistake or fault. The word vedānta means "the end of Vedic knowledge." In other words, any book which deals with the subject matter indicated by all the Vedas is called vedānta. For example, the Bhagavad-gītā is vedānta because in the Bhagavad-gītā the Lord says that the ultimate goal of all Vedic research is Kṛṣṇa. Thus one should understand that the Bhagavad-gītā and Śrīmad-Bhāgavatam, which aim only at Kṛṣṇa, are vedānta.
(Teachings of Lord Caitanya).

In Bhagavad-gītā (15.15) it is said, vedaiś ca sarvair aham eva vedyaḥ: Vedic knowledge means to understand the Supreme Personality of Godhead, Kṛṣṇa. Therefore, whether one speaks of the Vedas, scriptures, religion or the principles of everyone's occupational duty, all of them must aim at understanding Kṛṣṇa, the Supreme Personality of Godhead.
(Srimad Bhagavatam----7:11:7----purport).

Vedic knowledge means which is spoken by the Supreme Lord. That is Vedic knowledge. Apauruṣeya. It is not spoken by common man like me. So if we accept Vedic knowledge, if we accept the fact as it is stated by Kṛṣṇa, or His representative... Because His representative will not speak anything which Kṛṣṇa does not speak. Therefore he's representative. The Kṛṣṇa conscious persons are representative of Kṛṣṇa because a Kṛṣṇa conscious person will not speak anything nonsense, beyond the speaking of Kṛṣṇa. That is the difference.
(Lecture on Bhagavad-Gita----2:22).

Vedic knowledge means to understand God, the whole Vedic knowledge. Knowledge means we are getting... Veda means knowledge. Vetti veda vido jñāne. Veda means knowledge. So we want to know so many things. That is knowledge. So you get all information from the Vedas. There is called Āyur-veda, Dhanur-veda, Yajur-veda. Veda means knowledge, but actually the Veda means, ultimately, to know God. That is called Vedānta. Anta means ultimate, and veda means knowledge. So ultimate knowledge is your, when..., if... You know so many things. We have got so many subject matters for understanding. But ultimately, when you understand what is God, that is the end of knowledge. That is end of knowledge. So that is Vedānta. So Vedānta means to know the Absolute Truth, God. That is explained in the Bhagavad-gītā, vedaiś ca sarvair aham eva vedyaṁ vedānta-kṛd veda-vid eva cāham (B.G.15:15). Kṛṣṇa says that "By all Vedic knowledge, ultimately one must come to the point of knowing God." Therefore another name of God is Brahman, Parabrahman. So brāhmaṇa, brāhmaṇa means one who knows Brahman. That is called brāhmaṇa. A brāhmaṇa is not a class which is to be found in India only. No. Anyone who knows God, who knows the Parabrahman, he is brāhmaṇa. Brahma jānātīti brāhmaṇaḥ. So Vedic knowledge means ultimately to become a brāhmaṇa. That means to know God. That is Vedic knowledge. And the summary of Vedic knowledge is here in the Bhagavad-gītā, because here God directly is instructing about Himself. Therefore it is the essence of all Vedic knowledge. The ultimate goal of Vedic knowledge is to know God.
(General Lecture).