Accordingly, we urged Titus that as he had started, so he should complete among you this act of grace. But as you excel in everything—in faith, in speech, in knowledge, in all earnestness, and in our love for you—see that you excel in this act of grace also.
Paul was in the process of a year long giving campaign for the church(es) in Jerusalem. The church in Corinth had initially agreed to participate in this “grace” (as it is called) but then some issues came up which made it difficult. The unforeseen issues in life that we all deal with that we didn’t count on. Paul seems to have understood that they did have a difficult time, but that now their issues have begun to subside, he wanted to remind them to follow-through on their original pledge. When we agree to give, serve, or do for God, there certainly will be times when life gets in the way, don’t let that derail you. Pick your commitment back up when you can. As long as you’re breathing, it’s not too late 🙂