1 Samuel 14:10
But if they say thus, Come up unto us, then we will go up, for the LORD has delivered them into our hand, and this shall be a sign unto us.
Genesis 24:14
And let it come to pass that the damsel to whom I shall say, Let down thy pitcher, I pray thee, that I may drink; and she shall say, Drink, and I will give thy camels to drink also; let the same be she that thou hast appointed for thy slave Isaac; and thereby shall I know that thou hast shown mercy unto my master.
Judges 6:36
And Gideon said unto God, Wilt thou save Israel by my hand as thou hast said?
Judges 7:11
and thou shalt hear what they say; and then thy hands shall be strengthened, and thou shalt go down to the camp. Then he went down with Phurah his servant unto the outside of the armed men that were in the camp.
1 Samuel 10:7
And let it be when these signs are come unto thee that thou do according as thou shalt find at hand, for God is with thee.
Isaiah 7:11-14
Ask a sign of the LORD thy God; ask it either in the depth, or in the height above.