The psalm concludes with a request to God to build up Zion and make it prosper for his good pleasure. Then because of the great mercy of God pleasing sacrifices will be made. David started the psalm confessing his sin and asking for mercy. He concludes by saying that the whole city will present praise sacrifices once restored.
The author of the letter to the congregation in Rome wrote, “Therefore, I urge you, brothers, in view of God’s mercy, to offer your bodies as living sacrifices, holy and pleasing to God–this is your spiritual act of worship. Do not conform any longer to the pattern of this world, but be transformed by the renewing of your mind. Then you will be able to test and approve what God’s will is–his good, pleasing and perfect will.” (Romans 12:1-2)
Because of God’s mercy through Jesus, I can praise God by living holy and pleasing to God.