True, some of them were unfaithful; but just because they were unfaithful, does that mean God will be unfaithful? ( Romans 3:3).
~When God puts a promise in your heart, it’s not up to other people to bring it to pass, it’s up to you! You don’t need everyone to validate you. You have to follow the voice of God for yourself and allow Him to order you steps. God will be faithful even when others are unfaithful.