Why is it so hard for us to trust in the Lord?

It is so hard for us to trust in the Lord, because we are a faithless generation who wants everything now, we are a covetous generation who wants what God has not predestined for us, we are not willing to rest in the Lord, and wait patiently for Him, many of us say that we are righteous, that we believe, but, at the first sign of crisis we become frazzled. My brothers and sisters in Christ, let your life be faith-filled and live like you believe, trust in the Lord always and He shall give you the desires of your heart. Help us, Lord!