Matthew Poole and continuators on 1 Chronicles 17:24

24 Let it even be established, that thy name may be magnified for ever, saying, The LORD of hosts is the God of Israel, even a God to Israel , and let the house of David thy servant be established before thee.

Or, The Lord of Hosts, the God of Israel, is a God to Israel, i. e. He is really to his People that which he hath stiled himself, their God, having taken such Care of them and shewed such Mercy and Truth to them, as did fully answer that Title.