What does 1 Samuel 16:5 mean?

He said, 'Yes, I come in peace. I’ve come to offer a sacrifice to God. Clean yourselves up and come with me.' Then he made sure Jesse and his sons were prepared for the sacrifice. 1 Samuel 16:5 - Modern Text Bible

(Samuel reassures them and invites Jesse’s family to join the ceremony, setting the stage for what God is about to do.)