"Ending of a prayer? (NOT CHRISTIAN)"
Here's a couple of possibilities.
- (저의 [저희] 기도를) 들어주세요. => May our prayers be realized / May they be realized.
(저의 기도: my prayer, 저희 기도: our prayer, 들어주다: hear and make it come true)
- (저의 [저희] 기도가) 이루어지소서. => May our prayers come true / May they come true.
(이루어지다: come true; become a reality)