v.10 “By the grace God has given me, I laid a foundation as an expert builder, and someone else is building on it.”
Paul is emphasising the point that he has been merely the first person to have an affect on someone’s life. He may have laid the foundation, but it is for others, including the “house owners” themselves, to carry on the work and build further.
Every day we have the opportunity to create an impact for good or ill on our own lives and on the lives of those we meet. Each interaction with others may draw them closer to God or drive them away. Ultimately however, it is up to them how they respond to God, and we may never know the effect we have had. A kind word or deed can have unimagined positive effects.
Lord, help me to share your Gospel in word and deed, simply being faithful in my witness and in my actions. Amen.