Make not thy boast of tomorrow, for thou knowest not what may happen today.

and I will say to my soul: Soul, thou hast much goods laid up in store for many years, take thine ease: eat, drink and be merry.'

Go to now, ye that say, "Today and tomorrow let us go into such a city and continue there a year and buy, and sell, and win,"

And moreover, the LORD will deliver Israel with thee into the hands of the Philistines. And tomorrow shalt thou and thy sons be with me, and the LORD shall give the host of Israel into the hands of the Philistines."

For he is our God; and we are the people of his pasture, and the sheep of his hands.

"Come," say they, "I will fetch wine, so shall we fill ourselves, that we may be drunken. And do tomorrow, like as today; yea, and much more."

For he saith, "I have heard thee in a time accepted: and in the day of salvation have I succoured thee." Behold, now is that well accepted time. Behold, now is the day of salvation.

Treasury of Scripture Knowledge

Summary

Boast not thyself of to morrow; for thou knowest not what a day may bring forth.

Bible References

Boast

For he is our God; and we are the people of his pasture, and the sheep of his hands.
"Come," say they, "I will fetch wine, so shall we fill ourselves, that we may be drunken. And do tomorrow, like as today; yea, and much more."
and I will say to my soul: Soul, thou hast much goods laid up in store for many years, take thine ease: eat, drink and be merry.'
For he saith, "I have heard thee in a time accepted: and in the day of salvation have I succoured thee." Behold, now is that well accepted time. Behold, now is the day of salvation.
Go to now, ye that say, "Today and tomorrow let us go into such a city and continue there a year and buy, and sell, and win,"

Thou

And moreover, the LORD will deliver Israel with thee into the hands of the Philistines. And tomorrow shalt thou and thy sons be with me, and the LORD shall give the host of Israel into the hands of the Philistines."

General references

and that which remaineth of the flesh and of the bread, burn with fire.
Say not unto thy neighbour, "Go thy way and come again, tomorrow will I give thee"
But now ye rejoice in your boastings. All such rejoicing is evil.
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