Psalm 105:8 He remembers his covenant for ever, the promise he made, for a thousand generations
We may not be able to keep our promises all the time – and we then begin to think we should not make promises we cannot keep.
Christ, on the other hand, made a whole lot of promises and has been making sure every one of them comes to pass!
We can utterly rely on every promise Jesus made to us and treat every word He said as a promise for us now and in the future!