Malachi 2:2 - if you will not listen I will curse your blessing

If you will not listen, if you will not take it to heart to give honor to my name, says the LORD of hosts, then I will send the curse upon you and I will curse your blessings. Indeed, I have already cursed them, because you do not lay it to heart.

Deuteronomy 7:9 - will Jesus return after 1000 generations?

Know therefore that the LORD your God is God, the faithful God who keeps covenant and steadfast love with those who love him and keep his commandments, to a thousand generations,

Romans 3:21-24 - redemption through Jesus Christ

But now the righteousness of God has been manifested apart from the law, although the Law and the Prophets bear witness to it-- the righteousness of God through faith in Jesus Christ for all who believe. For there is no distinction: for all have sinned and fall short of the glory of God, and are justified by his grace as a gift, through the redemption that is in Christ Jesus,

John 16:33 - take heart

I have said these things to you, that in me you may have peace. In the world you will have tribulation. But take heart; I have overcome the world."