Why should Christians glorify God for their salvation?

The act of glorifying God for salvation stems from the recognition that it is an unmerited gift from Him. David's song reflects a heart intent on praising the Lord for His deliverance, stating clearly, 'He saved me' (2 Samuel 22:20). Every aspect of salvation points back to God's goodness and mercy; as established in Romans 9:15-16, it is God's choice to show mercy that secures our salvation. Thus, every believer is called to offer thanks and worship, as their salvation is evidence of God's love and sovereign grace acting in their lives, making them instruments of His glory.