be on one's knees

He got on his knees and looked under the table.

So she got on her knees and went to work.

He had to get on his knees to find one.

He got on his hands and knees to look over.

It takes some practice getting on hands and knees at first.

He got on his knees in the seat and reached into the back.

At last, he got back on his knees and completed the changes.

Get on your knees for a ticket to see them.

Rolling over and getting on my knees, I looked up.

I get on my knees with him to see the arrangement at eye level.