Yea, thou shalt be as he that lieth down in the midst of the sea, or as he that lieth upon the top of a mast.

And thou shalt be as one sleeping in the midst of the sea, and as a pilot fast asleep, when the stern is lost.

and thou shalt be as he that lieth down in the midst of the sea, and as he that lieth down upon the top of a mast:

And thou hast been as one lying down in the heart of the sea, And as one lying down on the top of a mast.

Yes, you shall be as he that lies down in the middle of the sea, or as he that lies on the top of a mast.

Yes, you will be like him who takes his rest on the sea, or on the top of a sail-support.

And you will be like someone sleeping in the middle of the sea, and like a pilot, fast asleep, who has lost his hold on the helm.

The passage is interesting, as showing the increased familiarity of Israelites with the experiences of sea life (compare Psalm 104:25-26; Psalm 107:23-30).
In the midst of the sea - i. e., When the ship is in the trough of the sea and the man is on the deck. The second clause varies the form of danger, the man is in the "cradle" at the top of the mast, and sleeps there, regardless of the danger.

Lieth down in the midst of the sea - He is utterly regardless of life; which is expressed very forcibly by one in a state of intoxication ascending the shrouds, clasping the mast-head, and there falling asleep; whence, in a few moments, he must either fall down upon the deck and be dashed to pieces, or fall into the sea and be drowned. Reader, if thou be a man given to this appetite, put a knife to thy throat.

And thou shalt be as he that lieth down in the midst of the (p) sea, or as he that lieth upon the top of a mast.
(p) In such great danger will you be.

Yea, thou shall be as he that lieth down in the midst of the sea,.... Not in the open sea, and the waves of it, there fluctuating and tossed about; nor in an island encompassed by sea; but in a ship at sea, a drunken man reels and tumbles about, just as a ship does at sea; hence the motions and agitations of it, and of the men in it, are compared to the reeling and staggering of a drunken man, Psalm 107:26;
or as he that lieth upon the top of a mast: where the motion is the greatest. Or all this may be expressive of the dangers which a drunkard is exposed unto, and of his stupidity and insensibility; for though he is in as great danger as one in the circumstances described, in a storm at sea, yet is not sensible of it; which agrees with what follows.

Lieth down - To sleep. Sea - In a ship in the midst of the sea.