Verses with the word lap in the Old Testament (3 verses):

2 Kings 4:39
And one went out into the field to gather herbs, and found a wild vine, and gathered thereof wild gourds his lap full, and came and shred them into the pot of pottage: for they knew them not.

Nehemiah 5:13
Also I shook my lap, and said, So God shake out every man from his house, and from his labour, that performeth not this promise, even thus be he shaken out, and emptied. And all the congregation said, Amen, and praised the LORD. And the people did according to this promise.

Proverbs 16:33
The lot is cast into the lap; but the whole disposing thereof is of the LORD.