That is a song by the McKamey's called Under His Feet

verse 1:
When Simon Peter walked abreast,
putting his faith unto the test
He said, Master, wilt thou bidst me come unto Thee?
He said, "Come" so Peter went,
And when the faith he had was spent,
Peter sank low, but Jesus had waves roll under his feet.

cho:
Under his feet (under his feet)
Under his feet (under, yes, under his feet)
There's not a problem that you'll face, He cannot meet;
Whenever you've waded out to far in waters too deep,
Remember when waves are over your head,
They're under His feet.

verse 2:
Often we faint in trials sore,
Can't face our troubles any more
Forgetting where ever we may go, He's been there before;
We should look up and praise the Lord,
He walks the water and the shore,
The heavenly breeze and the thundering seas
are under His feet.

I have a song with just a few lines to it
it goes like this

When the waves are over your head there uder his feet..yes under his feet,yes under his feet