15 But if you do not obey the LORD, and if you rebel against his commands, his hand will be against you, as it was against your ancestors.

Read 1 Samuel 12:15 Using Other Translations

But if ye will not obey the voice of the LORD, but rebel against the commandment of the LORD, then shall the hand of the LORD be against you, as it was against your fathers.
But if you will not obey the voice of the LORD, but rebel against the commandment of the LORD, then the hand of the LORD will be against you and your king.
But if you rebel against the LORD ’s commands and refuse to listen to him, then his hand will be as heavy upon you as it was upon your ancestors.