Jonathan not being assured of the success of this present exploit, desires a sign; and by the instinct of God's Spirit, as the success shows, pitched upon this. Divers such heroical motions and extraordinary impulses there were among great and good men in ancient times; as Genesis 24:13 Judges 6:37; which are not precedents to us.
Related Commentaries of 1 Samuel 14:10
1 Samuel 14:10
10 But if they say thus, Come up unto us; then we will go up: for the LORD hath delivered them into our hand: and this shall be a sign unto us.