asaṅkhya - unlimited; bhaktera - of devotees; karāilā - made into being; avatāra - incarnation; śeṣe - at last; avatīrṇa - descended; hailā - became; vrajendra-kumāra - Lord Kṛṣṇa, the son of Nanda Mahārāja.

Lord Kṛṣṇa, Vrajendra-kumāra, first caused countless devotees to appear, and at last He appeared Himself.