SEV Biblia, Chapter 15:21
Mas todo esto os harán por causa de mi nombre, porque no conocen al que me ha enviado.
Clarke's Bible Commentary - John 15:21
Verse 21. Because they know not him that sent me.] This is the foundation of all religious persecution: those who are guilty of it, whether in Church or state, know nothing about God. If God tolerates a worship which professes to have him for its object, and which does not disturb the quiet or peace of society, no man has the smallest right to meddle with it; and he that does fights against God. His letting it pass is at least a tacit command that all should treat it as he has done.
John Gill's Bible Commentary
Ver. 21. But all these things will they do unto you , etc.] Christ here signifies, that all the hatred and persecutions raised against his people by the world, would not be on their own account, for any evil actions done by them; they would not suffer as thieves, murderers, and evildoers, but as Christians; or as he says, for my name’s sake : because they were called by his name, and called upon his name; because they professed his name, and confessed him to be the Messiah and Redeemer; because they loved his name Jesus, a Saviour, believed in his name, and hoped in him for eternal life; and also preached him, and in his name salvation, and encouraged others to believe in him; and therefore they had no reason to be ashamed, but rather to rejoice; as they afterwards did, that they were counted worthy to suffer shame for his name: besides, this malice and hatred of theirs arose from ignorance of the Father of Christ: because they know not him that sent me ; they did not know that Jesus was the Christ, and sent of God; they did not acknowledge him to be so, or the Father to be the sender of him; and because Christ and his disciples asserted this, therefore they were the objects of their hatred.
Matthew Henry Commentary
Verses 18-25 - How little do many persons think, that in opposing the doctrine of Christ as our Prophet, Priest, and King, they prove themselves ignoran of the one living and true God, whom they profess to worship! The nam into which Christ's disciples were baptized, is that which they wil live and die by. It is a comfort to the greatest sufferers, if the suffer for Christ's name's sake. The world's ignorance is the tru cause of its hatred to the disciples of Jesus. The clearer and fulle the discoveries of the grace and truth of Christ, the greater is ou sin if we do not love him and believe in him.
Greek Textus Receptus
αλλα 235 CONJ ταυτα 5023 D-APN παντα 3956 A-APN ποιησουσιν 4160 5692 V-FAI-3P υμιν 5213 P-2DP δια 1223 PREP το 3588 T-ASN ονομα 3686 N-ASN μου 3450 P-1GS οτι 3754 CONJ ουκ 3756 PRT-N οιδασιν 1492 5758 V-RAI-3P τον 3588 T-ASM πεμψαντα 3992 5660 V-AAP-ASM με 3165 P-1AS
Vincent's NT Word Studies
21. For my name's sake (dia to onoma mou). Literally, on account of my name. The name of Christ represented the faith, the attitude, the claims, and the aim of the disciples. His name was their confession. Luther says: "The name of Christ from your mouth will be to them nothing but poison and death."