Psalm 132:9,16   The prayer: "Let Thy priests beclothed in righteousness; and let thy godly ones sing for joy." The answer, verse 16 " Her priests also I will clothe with salvation; and her godly ones will sing aloud for joy."   The answer does not come because of David's sake, but because of Jesus.  The sons of David failed to keep the covenant,  but the Son of David walked perfectly in the will of the Father.  He is the anointed One, the horn of David and "upon himself his crown shall shine." Thank you Jesus! You are the answer to every prayer.