God is big enough to bless both.

Summary

The sermon's main theme is trusting in God's abundant blessings and avoiding comparison or self-effort. It emphasizes that God is large enough to bless everyone and that all things, good or bad, are working together for good according to His plan, referencing Romans 8:28. The practical takeaway is to rely on God's help for self-improvement and trust that He will bless both you and others, rather than trying to accomplish things on your own.