While the Bible never explicitly says that worry is a sin, we can still conclude this based on Scriptures. That’s because most worry or anxiety is a failure to trust God and His goodness or to believe what He told us. For example, the Sermon on the Mount records Jesus’ admonition to His followers to trust God to take care of them and not worry (for example, Matthew 6:25-32). Psalms 55:22 puts it like this: