1st Samuel 14:8

5 The forefront of the one was situate northward over against Michmash, and the other southward over against Gibeah.

6 And Jonathan said to the young man that bare his armour, Come, and let us go over unto the garrison of these uncircumcised: it may be that the LORD will work for us: for there is no restraint to the LORD to save by many or by few.

7 And his armourbearer said unto him, Do all that is in thine heart: turn thee; behold, I am with thee according to thy heart.

8 Then said Jonathan, Behold, we will pass over unto these men, and we will discover ourselves unto them.

9 If they say thus unto us, Tarry until we come to you; then we will stand still in our place, and will not go up unto them.

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.

11 And both of them discovered themselves unto the garrison of the Philistines: and the Philistines said, Behold, the Hebrews come forth out of the holes where they had hid themselves.