1.

O God, thou art my God; early will I seek thee: my soul thirsteth for thee, my flesh longeth for thee in a dry and thirsty land, where no water is;

O God, thou art my God; early will I seek thee: my soul thirsteth for thee, my flesh longeth for thee in a dry and thirsty land, where no water is;
Early — Heb. in the morning, Which implies the doing it with diligence and speed.
Thirsteth — For the enjoyment of thee in thy house and ordinances.
Flesh — The desire of my soul, is so vehement, that my very body feels the effects of it.
No water — In a land where I want the refreshing waters of the sanctuary.

2.

To see thy power and thy glory, so as I have seen thee in the sanctuary.

To see thy power and thy glory, so as I have seen thee in the sanctuary.
To see — To enjoy.
Power — The powerful and glorious effects of thy gracious presence.

3.

Because thy lovingkindness is better than life, my lips shall praise thee.

4.

Thus will I bless thee while I live: I will lift up my hands in thy name.

5.

My soul shall be satisfied as with marrow and fatness; and my mouth shall praise thee with joyful lips:

My soul shall be satisfied as with marrow and fatness; and my mouth shall praise thee with joyful lips:
Satisfied — When thou shalt fulfil my earnest desire of enjoying thee in the sanctuary.

6.

When I remember thee upon my bed, and meditate on thee in the night watches.

7.

Because thou hast been my help, therefore in the shadow of thy wings will I rejoice.

8.

My soul followeth hard after thee: thy right hand upholdeth me.

9.

But those that seek my soul, to destroy it, shall go into the lower parts of the earth.

But those that seek my soul, to destroy it, shall go into the lower parts of the earth.
Shall go — Into the grave.

10.

They shall fall by the sword: they shall be a portion for foxes.

They shall fall by the sword: they shall be a portion for foxes.
Foxes — Their carcases shall become a prey to wild and ravenous creatures.

11.

But the king shall rejoice in God; every one that sweareth by him shall glory: but the mouth of them that speak lies shall be stopped.

But the king shall rejoice in God; every one that sweareth by him shall glory: but the mouth of them that speak lies shall be stopped.
The king — I who am already anointed king.
Every one — That sweareth by the name of God, in truth, and judgment, and righteousness. Every sincere servant and worshipper of God.
Shall glory — Shall rejoice in my deliverance.