Noah was justified by faith because he believed God's word and acted upon it, showing that his righteousness was a result of God's grace.
Noah's justification is described in Hebrews 11:7, where it states that he became heir of the righteousness which is by faith. The concept of being justified by faith underscores the Reformed view that righteousness is not based on works but is a gift from God. Noah's faith led him to follow God's command to build the ark, which was evidence of his justification. His ability to find grace in God's sight was not because of any merit of his own but was grounded in God's sovereign choice and electing love. This reinforces the Reformed belief that justification comes through faith alone, highlighted in the Five Solas.
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