Jesus speaks clear about sin and never says any of it is ok! In fact he doesn't ever use the word grace!
The entire bibles word for grace out side of Paul's writing in Hebrew is favor in gods eyes! OT & NT Not undeserved that was adopted through Paul's teachings.
Enter ye in at the strait gate: for wide is the gate, and broad is the way, that leadeth to destruction, and many there be which go in thereat: Because strait is the gate, and narrow is the way, which leadeth unto life, and few there be that find it. Beware of false prophets, which come to you in sheep's clothing, but inwardly they are ravening wolves. Ye shall know them by their fruits. Do men gather grapes of thorns, or figs of thistles? Even so every good tree bringeth forth good fruit; but a corrupt tree bringeth forth evil fruit. A good tree cannot bring forth evil fruit, neither can a corrupt tree bring forth good fruit. Every tree that bringeth not forth good fruit is hewn down, and cast into the fire.
And every one that heareth these sayings of mine, and doeth them not, shall be likened unto a foolish man, which built his house upon the sand: And the rain descended, and the floods came, and the winds blew, and beat upon that house; and it fell: and great was the fall of it. ([bless and do not curse]Matthew‬ [bless and do not curse]7‬:[bless and do not curse]13-19, 26-27‬ KJV)