Great unalloyed devotees of the Lord are compassionate towards the fallen, and therefore they travel all over the world with the mission of bringing souls back to Godhead, back to home. Such pure devotees of the Lord carry the message of Godhead in order to deliver the fallen souls, and therefore the common man who is bewildered by the influence of the external energy of the Lord should avail himself of their association.
(Srimad Bhagavatam------3:5:3------purport).

The Lord is always compassionate towards the fallen souls of this material world, and therefore He comes Himself or sends His confidential servants to deliver them. Since He is perpetually compassionate towards them, if some of His devotees also become compassionate towards them, He is very pleased with the devotees.
(Srimad Bhagavatam------3:29:6------purport).

Pure devotees, out of compassion for the fallen souls, are kṛpālu, very kind to people in general; they distribute this Bhāgavata knowledge all over the world. A kindhearted devotee is called dīna-nātha, protector of the poor, ignorant mass of people. Lord Kṛṣṇa is also known as dīna-nātha or dīna-bandhu, the master or actual friend of the poor living entities, and His pure devotee also takes the same position of dīna-nātha. The dīna-nāthas, or devotees of Lord Kṛṣṇa, who preach the path of devotional service, become the favorites of the demigods.
(Srimad Bhagavatam------4:12:51------purport).