Numbers 32:23 in the King James Version
But if ye will not do so, behold, ye have sinned against the LORD: and be sure your sin will find you out.
Context
22 and the land is subdued before the LORD; then afterward you shall return, and be clear of obligation to the LORD and to Israel. Then this land shall be your possession before the LORD.
23 “But if you will not do so, behold, you have sinned against the LORD; and be sure your sin will find you out.
24 Build cities for your little ones, and folds for your sheep; and do that which has proceeded out of your mouth.”