1.

O sing unto the LORD a new song: sing unto the LORD, all the earth.

O sing unto the LORD a new song: sing unto the LORD, all the earth.
O sing — Upon this new and great occasion, not the removal of the ark, but the coming of the Messiah.

2.

Sing unto the LORD, bless his name; shew forth his salvation from day to day.

3.

Declare his glory among the heathen, his wonders among all people.

4.

For the LORD is great, and greatly to be praised: he is to be feared above all gods.

For the LORD is great, and greatly to be praised: he is to be feared above all gods.
Gods — The gods of the nations, as the next verse expounds it.

5.

For all the gods of the nations are idols: but the LORD made the heavens.

6.

Honour and majesty are before him: strength and beauty are in his sanctuary.

Honour and majesty are before him: strength and beauty are in his sanctuary.
Before him — In his presence.

7.

Give unto the LORD, O ye kindreds of the people, give unto the LORD glory and strength.

8.

Give unto the LORD the glory due unto his name: bring an offering, and come into his courts.

9.

O worship the LORD in the beauty of holiness: fear before him, all the earth.

O worship the LORD in the beauty of holiness: fear before him, all the earth.
Beauty — Cloathed with all the gifts and graces, which are necessary in God's worship.

10.

Say among the heathen that the LORD reigneth: the world also shall be established that it shall not be moved: he shall judge the people righteously.

Say among the heathen that the LORD reigneth: the world also shall be established that it shall not be moved: he shall judge the people righteously.
Reigneth — God hath now set up his kingdom in the world.
Established — The nations of the world shall by the means of it enjoy an established and lasting peace.

11.

Let the heavens rejoice, and let the earth be glad; let the sea roar, and the fulness thereof.

12.

Let the field be joyful, and all that is therein: then shall all the trees of the wood rejoice

13.

Before the LORD: for he cometh, for he cometh to judge the earth: he shall judge the world with righteousness, and the people with his truth.

Before the LORD: for he cometh, for he cometh to judge the earth: he shall judge the world with righteousness, and the people with his truth.
Before — At the presence and approach of their Lord and Maker.
Cometh — To set up his throne among all the nations of the earth.