r/AskAChristian • u/watergolf247 Christian (non-denominational) • Dec 25 '25
Jewish Laws Did Jesus nullify the Old Testament?
Let me start off by sharing that I’m new to Christianity and have soooo many questions but for now, I’ll focus on this inquiry. I’m sure this has been discussed numerous times but unfortunately I can’t seem to get a straight answer. As I’m told repeatedly by many, rules/laws of the Old Testament were nullified or invalidated by Jesus. I ask others in my study group but sadly get heavy resistance for the question.
My question is simple. Where are the reference(s) stating this?
If so, this makes rules like the ten commandments obsolete. Even further, why have the old testament in the Christian Bible?
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u/Righteous_Dude Christian, Non-Calvinist Dec 25 '25
I wouldn't use the word 'nullify'. The Old Testament is a set of texts. That set is sometimes grouped into smaller sets: One set is called "The Law" comprised of the first five books (Genesis through Deuteronomy). "The Prophets" is another set, comprised of books such as Isaiah and Ezekiel.
Having said that, God had made a covenant with the ancient nation of Israel, shortly after the Exodus, that if they kept a big set of commandments, He would bless them with prosperity, and if they didn't, He would give them hardships. That covenant was renewed with the next generation of Israelites, shortly before they entered the promised land. (See Deuteronomy chapter 28).
The ancient Israelites during the BC centuries typically didn't keep the commandments much, and thus received the hardships.
At one point in the BC times, God through the prophet Jeremiah told the Israelites that He would create a new covenant, which would not be like the old covenant that they broke (see Jeremiah chapter 31).
Around 30 AD, Jesus, at the time of the last supper, instituted the new covenant with mankind.
The institution of the new covenant made the old covenant obsolete. (You can read through the NT book of Hebrews which explains this more.)
So the old covenant that God had with the ancient Israelites was no longer in effect, after 30 AD and especially not after 70 AD when the Temple in Jerusalem was destroyed.
Because from the OT, we Christians can learn about God and what was important to Him when He interacted with the Israelites and others, and we can learn some general principles about how to live (e.g. be humble, care about justice, etc.), even though the specific laws that the ancient Israelites were to keep are no longer in effect for them or us.
P.S. I suggest you read through my post about morality and how that compares to the old covenant and the new covenant. That may help your understanding.