27:1 Do not boast about tomorrow,
for you do not know what a day may bring.
2 Let another praise you, and not your own mouth;
a stranger, and not your own lips.
3 A stone is heavy, and sand is weighty,
but a fool's provocation is heavier than both.
4 Wrath is cruel, anger is overwhelming,
but who can stand before jealousy?
5 Better is open rebuke
than hidden love.
6 Faithful are the wounds of a friend;
profuse are the kisses of an enemy. (ESV)
If your enemy is hungry, give him bread to eat,
and if he is thirsty, give him water to drink,
for you will heap burning coals on his head,
and the Lord will reward you.