" Blessed is the man who trusts in the LORD, whose trust is the LORD."
Jeremiah 17:7 TGI
A person who trusts God, is just like a tree planted by a stream, whose roots are nourished by that water. Heat will not cause that tree to brown or ruin it's fruit because it's roots are nourished by it's water source.. In the same way, a person trusting God will still be able to do good things because they are nourished from within by God.