And Samuel told all the words of the Lord unto the people that asked of him a king.
And he said, This will be the manner of the king that shall reign over you: He will take your sons, and appoint them for himself, for his chariots, and to be his horsemen; and some shall run before his chariots.1 Samuel 8:11 KJV
Now therefore hearken unto their voice: howbeit yet protest solemnly unto them, and shew them the manner of the king that shall reign over them.1 Samuel 8:9 KJV
