For truly, I say to you, until heaven and earth pass away, not an iota, not a dot, will pass from the Law until all is accomplished.
Matthew 5:18

So long as heaven and earth stand, God's covenant with Israel stands and so does His #torah. See also Deuteronomy 32:1 and Jeremiah 33:25.

Keep in mind that the Torah, aka the Law of Moses or the Law of God as given through Moses, is not the same as the Sinai Covenant. The Law is included in he Covenant, but they are two separate things

If I make an agreement with you to keep the laws of Texas, that doesn't make the laws of Texas the same thing as my agreement. If I were to die or move to Australia where the laws of Texas don't apply, the laws would remain. Same thing with God's Law. It exists independently of any covenants because God exists, and his commandments are an extension of his unchanging character.