Of the 684 commands in the New Testament, some of them are of the if/then type and include a promise to those who obey the command. For example, Jesus promises to manifest Himself to those who keep His commands. Can you think of anything better than that?
“He who has My commandments and keeps (or, obey, guard, watch, as if a warden) them, it is he who loves (agape) Me. And he who loves (agape) Me will be(1) loved (agape) by My Father, and(2) I will love (agape) him and(3) manifest (or, to make known, cause to be seen, to show, to cause something to be fully known by revealing clearly and in some detail—‘to make known, to make plain, to reveal, to bring to the light, to disclose, revelation) Myself to him" (John 14:21).