New Revised Standard Version
But if they say, ‘Come up to us,’ then we will go up; for the LORD has given them into our hand. That will be the sign for us.”

Contemporary English Version
But we will go if they tell us to come up the hill and fight. That will mean the LORD is going to help us win."

New American Bible
But if they say, ‘Come up to us,’ we will go up, because the LORD has delivered them into our hand. That will be our sign.”

Douay-Rheims Bible
But if they shall say: Come up to us: let us go up, because the Lord hath delivered them into our hands, this shall be a sign unto us.

But if they shall say: Come up to us: let us go up, because the Lord hath delivered them into our hands, this shall be a sign unto us.

this shall be a sign

1 Samuel 10:7 When therefore these signs shall happen to thee, do whatsoever thy hand shall find, for the Lord is with thee.

Genesis 24:14 Now, therefore, the maid to whom I shall say: Let down thy pitcher that I may drink: and she shall answer, Drink, and I will give thy camels drink also: let it be the same whom thou hast provided for thy servant Isaac: and by this, I shall understand that thou hast shewn kindness to my master.

Judges 7:11 And when thou shalt hear what they are saying, then shall thy hands be strengthened, and thou shalt go down more secure to the enemies' camp. And he went down with Phara his servant, into part of the camp, where was the watch of men in arms.

Isaiah 7:11-14 Ask thee a sign of the Lord thy God, either unto the depth of hell, or unto the height above. . . .