There go the ships - By means of navigation, countries the most remote are connected, and all the inhabitants of the earth become known to each other. He appears at this time to have seen the ships under sail.

That leviathan - This may mean the whale, or any of the large marine animals. The Septuagint and Vulgate call it dragon. Sometimes the crocodile is intended by the original word.

To play therein - Dreadful and tempestuous as the sea may appear, and uncontrollable in its billows and surges, it is only the field of sport, the play-ground, the bowling-green to those huge marine monsters.

there go

Psalm 107:23 They that go down to the sea in ships, that do business in great waters;

Genesis 49:13 Zebulun shall dwell at the haven of the sea; and he shall be for an haven of ships; and his border shall be to Zidon.

leviathan

Psalm 74:14 You brake the heads of leviathan in pieces, and gave him to be meat to the people inhabiting the wilderness.

Job 3:8 Let them curse it that curse the day, who are ready to raise up their mourning.

Job 41:1 Can you draw out leviathan with an hook? or his tongue with a cord which you let down?

Isaiah 27:1 In that day the LORD with his sore and great and strong sword shall punish leviathan the piercing serpent...

made. Heb. formed
to play

Job 41:5,29 Will you play with him as with a bird? or will you bind him for your maidens...

Lessons from Nature
This prejudice against the beauties of the material universe reminds me of the lingering love to Judaism, which acted like a spell upon Peter of old. When the sheet knit at the four corners descended before him, and the voice said, "Rise, Peter; kill, and eat," he replied that he had not eaten anything that was common or unclean. He needed that the voice should speak to him from heaven again and again before he would fully learn the lesson, "What God hath cleansed that call not thou common." The …
Charles Haddon Spurgeon—Spurgeon's Sermons Volume 17: 1871

The Creaturely Man.
"The Spirit of God hath made me, and the breath of the Almighty hath given me life."-- Job xxxiii. 4. The Eternal and Ever-blessed God comes into vital touch with the creature by an act proceeding not from the Father nor from the Son, but from the Holy Spirit. Translated by sovereign grace from death unto life, God's children are conscious of this divine fellowship; they know that it consists not in inward agreement of disposition or inclination, but in the mysterious touch of God upon their spiritual …
Abraham Kuyper—The Work of the Holy Spirit

Of Confirmation.
It is surprising that it should have entered any one's mind to make a Sacrament of Confirmation out of that laying on of hands which Christ applied to little children, and by which the apostles bestowed the Holy Spirit, ordained presbyters, and healed the sick; as the Apostle writes to Timothy: "Lay hands suddenly on no man." (1 Tim. v. 22.) Why not also make a confirmation out of the sacrament of bread, because it is written: "And when he had received meat, he was strengthened" (Acts ix. 19); or …
Martin Luther—First Principles of the Reformation