Instructions for the strong
May the God who gives endurance and encouragement give you a spirit of unity among yourselves as you follow Christ Jesus, 6 so that with one heart and mouth you may glorify the God and Father of our Lord Jesus Christ.
It bears repeating that such a spirit of humble service to weak Christians is not self-generated. It is rather a gift of God given through the Holy Spirit that enables us to imitate Christ more and more. In his prayer asking God to give this gift to his readers, Paul also includes us when he writes, “May the God who gives endurance and encouragement give you a spirit of unity among yourselves as you follow Christ Jesus, so that with one heart and mouth you may glorify the God and Father of our Lord Jesus Christ.”
What we do for a weak brother is in reality being done for Christ himself as well. Regarding such deeds done by his believers, our Savior testifies that on the Last Day he will declare, “I tell you the truth, whatever you did for one of the least of these brothers of mine, you did for me” (Matthew 25:40). Hence in living a life of loving service for others, we are actually “glorify[ing] the God and Father of our Lord Jesus Christ.”