The covenants that the Lord makes are effected by His Word which will accomplish its purpose Isa 55:11.

In the case of the MosaicCovenant Exo 19:5,8 there were two possible outcomes: -> blessing for obedience -> cursing for disobedience Deu 28:1-68

The HolySpiritFather said this regarding Jesus Christ: ^This is My Beloved Son - hear Him!^

The Jews did not and do not love Jesus, they rejected and have rejected this command and the object of the command, Jesus Christ.

So, the promises of God are not extended to the Jews nor any other individual or group of people who likewise rebel.