1 Samuel 17:37

And David said moreover
For the further confirmation of it, and as more strongly expressing his faith of it; not as owing to any natural strength or skill of his, but to the power of God, of whose assistance he made no question:

the Lord that delivered me out of the paw of the lion, and out of the
paw of the bear;
for to him he ascribes his deliverance from those savage creatures, and his victory over them, and on him he relied for help and salvation in the present case:

he will deliver me out of the hand of this Philistine;
David did not go forth in his own name and strength, but in the name and strength of the Lord of hosts:

and Saul;
seeing him so positive, and fully assured of victory:

said unto David, go, and the Lord be with thee;
to help and assist him, to deliver him out of the hand of the Philistine, and give him victory over him; the Targum is,

``the Word of the Lord be for thy help.''