Hymn Lyrics Search - Name That Hymn

I'm looking for a song for my cousin. Her Mom used to sing this song in church years ago. She can't find the words to this song anywere. Can someone please help? I don't know all of the song, but she said that some of it goes like:

We shall see him as he is.........They will come rejoicing.........The sea will give up her dead.....

That's really all I know of it. I'd appreciate any help!