What does the Bible say about the deceitfulness of sin?

Hebrews 3:13 explicitly warns believers to encourage one another daily to avoid being hardened by the deceitfulness of sin. Sin is portrayed as the greatest evil in existence, capable of turning blessings into curses and leading individuals away from God's truth. This deceitfulness manifests subtly, causing individuals to slowly slip into sin, often underestimating its potential consequences. The Bible emphasizes the pressing need for daily exhortation to remain aware of sin's dangerous allure and to actively seek God's grace to combat its influence.