God has never needed anything. He is complete in Himself and lacks nothing. He is one single being and yet He has never lacked relationship or needed love. His very being has always been defined by relationships of love. God did not need to create us and yet He did. God created us so that we might share in the love and relationships which exists within Him. The One Being, Yahweh, has always existed in an eternal dance of love between the Father, Son, and Spirit. Those who are in the Son have been adopted into that eternal dance. Both our creation and our redemption are acts of pure grace. That's grace, something given as a free gift where the giver has no obligation to do so and the recipient has no merit and deserves none of it. If both our creation and our redemption are entirely the work of God, based upon His sovereign choice, then why should we ever for moment fear for our salvation. We don't deserve it and never will. It is Him who freely gives it without cause. Through no merit of our own, we have been ushered into the dance.