Integrity means that your life is whole, that your heart is not divided. Jesus said, “No one can serve two masters” (Matt.6:24). That’s integrity.
When we have integrity, we don’t have to be afraid off sliding. We also need not to be afraid of testing.
When your life is whole before God and others, when you’re practising integrity, when you have a good conscience, you don’t have to be afraid of the battle or the testing. God will see you through.
Never try to serve two masters. Always keep your heart undivided before the Lord.