Joshua 24:19-20

19Joshua said to them, ‘The Lord is a holy God. You will not be able to serve him. He wants you to belong to him. If you turn against him or you do not obey him, he will not forgive you.

20If you turn away from the Lord and you serve foreign gods, he will turn against you. He has been kind and he has helped you until now. But he will bring trouble to you and he will destroy you, if you turn away from him.’