Trust the gift-giver's love
When someone who loves you gives you a gift, they’re giving it to you because they love you. They don’t expect you to pay for it.
It is the same today, for a few of the people of Israel have remained faithful because of God’s grace—his undeserved kindness in choosing them. And since it is through God’s kindness, then it is not by their good works. For in that case, God’s grace would not be what it really is—free and undeserved. (Romans 11:5-6)