Paul writes that the Father has blessed us (those in Christ) with every spiritual blessing in Christ in the heavenly places (Ephesians 1:3). By means of the relationship with Christ — by union with Christ — we receive such spiritual blessings:
First of all, union with Christ implies that we are brought into such a relation to Him as to have a personal and saving interest in all that He is, and all that He has done and suffered as the Mediator. Christ becomes ours; and we become His. This is the ground of all our privileges and joys on earth, and of our title to eternal life.”
Henry Wilkinson Williams. “Union with Christ.” Now, in most relationships it is incumbent upon us to bestow some benefit upon the other as an outflow of love. Yet in our relationship with God in Christ, we bring only dependence and trust; that is, we bring only faith:
Holding, as we do, the doctrine of justification by faith alone, we contend, that the office—the one office—of faith is to connect us with Christ; and that when we come to Him in utter self-renunciation, and trust ourselves to Him as having died in our stead, and humbly claim Him as our own, on the ground of the Divine invitation and promise, then the saving benefit of His sacrifice accrues to us, the Father accepts us in Him, and restores us, in virtue of that relation to Him into which we are brought, to every forfeited privilege and blessing.”
Williams, Union With Christ. The love and good which we bestow upon Christ springs from our weakness, our dependence, our need. We pitch our hope upon him, and in turn blesses us. We in turn can only thank, praise — worship him, “and call upon me in the day of trouble; I will deliver you, and you shall glorify me” (Psalm 50:15).