Proverbs 27:1
Make no boast for thyself of the coming day; for thou knowest not what a day may bring forth.
Leeser Tanakh
In The King James Version
Boast not thyself of to morrow; for thou knowest not what a day may bring forth.
In Context
2Let another man praise thee, and not thy own mouth; a stranger, and not thy own lips.
Cross References
1 Samuel 28:19And the Lord will deliver also Israel with thee into the hand of the Philistines; and tomorrow shalt thou and thy sons be with me: also the camp of Israel will the Lord deliver into the hand of the Philistines.
Esther 5:12And Haman said [farther], Yea, Esther the queen did not let any one come in with the king unto the banquet that she had prepared but myself: and also for tomorrow am I invited unto her with the king.
Ecclesiastes 8:7For he knoweth not that which will be; for who can tell him how it will be?