"… for it is God who works in you to will and to act according to his good purpose." (Philippians 2:13)
The key to faithful living is not doing great things for God, but letting God do great things through us. God is the one who knows what is needed and how we can best meet that need. We can do nothing of value without the power of God working through us.
When we turn our will over to God, God places in us the desire to do what is best, what is right. With our hearts and minds focused on God, God works through our lives to accomplish his will.
Henry Blackaby puts it this way -