The recorded testimony of Moses in the Tanach is one of warning that Israel would be disinherited - offering the warning as a gracious offer of escape if Judah and Israel obeyed. They did not, and were exiled in perpetuity - until the Messiah should return. He has not yet returned. Jeremiah 18 details the conditionality of God's promises. That seals and sums it up, unless you are a Christian, wherein Paul adds confirmatory testimony for this.