Jesus warned about the wolf in sheep's clothing; Paul was just like that; hence I said about him as the seed of the Anti-Christ:
Matthew 7:15
[15] Beware of false prophets, who come to you in the clothing of sheep, but inwardly they are ravening wolves.
[16] By their fruits you shall know them. Do men gather grapes of thorns, or figs of thistles? [17]Even so every good tree bringeth forth good fruit, and the evil tree bringeth forth evil fruit. [18] A good tree cannot bring forth evil fruit, neither can an evil tree bring forth good fruit. [19] Every tree that bringeth not forth good fruit, shall be cut down, and shall be cast into the fire. [20] Wherefore by their fruits you shall know them.
[21] Not every one that saith to me, Lord, Lord, shall enter into the kingdom of heaven: but he that doth the will of my Father who is in heaven, he shall enter into the kingdom of heaven. [22] Many will say to me in that day: Lord, Lord, have not we prophesied in thy name, and cast out devils in thy name, and done many miracles in thy name? [23] And then will I profess unto them, I never knew you: depart from me, you that work iniquity. [24] Every one therefore that heareth these my words, and doth them, shall be likened to a wise man that built his house upon a rock, [25] And the rain fell, and the floods came, and the winds blew, and they beat upon that house, and it fell not, for it was founded on a rock.
Douay-Rheims Catholic Bible, Gospel According to Saint Matthew Chapter 7
Regards