​Joy in Hope of Mercy and Deliverance

Psalm 31:6-8 
 
6  I have hated them that regard lying vanities: but I trust in the LORD. 
7  I will be glad and rejoice in thy mercy: for thou hast considered my trouble; thou hast known my soul in adversities; 
8  And hast not shut me up into the hand of the enemy: thou hast set my feet in a large room.