When the apostle Paul speaks about the Law in the New Testament, he routinely speaks of it as a command attached to a condition. In other words, Law is a demand within a conditional framework. This is why he selects Leviticus 18:5 (both in Galatians 3 and Romans 10) as a summary of the salvation structure of the Law: if you keep the commandments, then you will live. The promise of life is linked to the condition of following the commandments and a corresponding threat for not following them: cursed is everyone who does not abide in all the things written in the Book of the Law, to do them (Galatians 3:10, citing Deuteronomy 27:26). It is the condition that does the work of condemnation. Ifs kill!
– Tchividian, Tullian; One Way Love: Inexhaustible Grace for an Exhausted World; David Cook Publishers; copyright 2013; Kindle Edition; Location 419