What does the Bible say about sinning against God?

The Bible teaches that sin is defined as the transgression of God's law (1 John 3:4). Each person is born into a state of sinfulness: 'Behold, I was shapen in iniquity, and in sin did my mother conceive me' (Psalm 51:5). Moreover, those who claim they have not sinned deceive themselves, as stated in 1 John 1:8. All sin is an offense to God's holiness, and thus incurs the penalty of death (Romans 6:23). Ultimately, our rebellion against God's law illustrates the depth of our need for a Savior who can justly bear the consequences of our sins.