John Wesley on Deuteronomy 29:13

That he may establish thee - Here is the summary of that covenant whereof Moses was the mediator, and in the covenant relation between God and them, all the precepts and promises of the covenant are included. That they should be established for a people to him, to fear, love, obey, and be devoted to him, and that he should be to them a God, to make them holy and happy; and a due sense of the relation we stand in to God as our God, and the obligation we are under to him as his people, is enough to bring us to all the duties, and all the comforts of the covenant. And does this covenant include nothing spiritual? nothing that refers to eternity?