In plain words
The poet, to the Lord of Araṅgam: O Lord of walled Tiruvaraṅgam! Did you not graciously declare to the many masters of the four Vedas, born in a long line of descent without a flaw, ‘Even if they are of low birth, if they are my servants, worship them, you; teach them what you know, and learn from them what they know’, so that they should be worshipped as your equals?