1 Samuel 14:6-10

6And Jonathan said to the young man that bore his armour, Come, and let us go over to the garrison of these uncircumcised: perhaps Jehovah will work for us; for there is no restraint to Jehovah to save by many or by few.

7And his armour-bearer said to him, Do all that is in thy heart; turn thee; behold, I am with thee according to thy heart.

8Then said Jonathan, Behold, we will pass over to the men, and we will shew ourselves to them.

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

10And if they say thus, Come up to us, then we will go up; for Jehovah has given them into our hand; and this shall be the sign to us.