Romans 12
Repay no one evil for evil, but give thought to do what is honorable in the sight of all. If possible, so far as it depends on you, live peaceably with all. Beloved, never avenge yourselves, but leave it to the wrath of God, for it is written, “Vengeance is mine, I will repay, says the Lord.” To the contrary, “if your enemy is hungry, feed him; if he is thirsty, give him something to drink; for by so doing you will heap burning coals on his head.” Do not be overcome by evil, but overcome evil with good.
Christians who love the Bible know this passage by heart. Very few care to memorize the (no-longer-followed) legal code of Israel. The ignorant choose to take the Bible out of context to justify their hate. Please don't make the same mistake.