God distinctly declares that the first indication of not trusting in Him is not unbelief, anger, disobedience, or rebellion, but an unthankful heart (Romans 1:21). And, we express that ungratefulness with our murmuring, complaining, and grumbling. Yet, do we realize that murmuring maligns and defames the goodness of God—we are actually accusing God of no longer being good! God is good! Therefore, everything He does is perfect and right. He is good, and thus, we can trust Him!