Lev 26-27 God desires that His people be a light among the nations. He desires that we obey Him and receive blessings, but just like an errant child who knows what they are to do and not do, sometimes God will allow discipline to correct His children. This is as true today as it was then: “Folly is bound up in the heart of a child, but the rod of discipline will drive it far from him.” [Prov 22:15] Like the Israelites of old, today we too face fallow land and fallow hearts.
How often do we think that these many rules or orders were just for the Israelites and they don’t apply to us because we live in NT times and under grace? A principle is a principle, and God is God. He is “does not go back on his word or change his mind, for he is not a human being who changes his mind.” [1Sam. 15:29] God desires that we obey Him now and forever so that He may bless us. Blessings come with obedience and the contrast is also true.
Just as then, God’s Word is always and forever true: “If we confess our sins, he is faithful and just to forgive us [our] sins, and to cleanse us from all unrighteousness.” [1Jn 1:9] Healing comes when we obey God and His way.