Charles H. Spurgeon on Psalms 135:1

Jehovah, infinitude, immensity itself, in all things, to all things, beyond all things, everywhere, wholly, essentially, continually present: as Jehovah, constancy, immutability, eternity itself, without any variableness, or shadow of change; yesterday, today, and for ever the same. In a word, when we think of the Most High God, Father, Son, and Holy Ghost, we should think of him as Jehovah, Unity in Trinity, Trinity in Unity, Three Persons, One Being, One Essence, One Lord, One Jehovah, blessed for ever. This is that glorious, that Almighty Being, which the Psalmist here means when he saith, "Praise ye the name of the LORD." —William Beveridge, 1636-1708.

Praise him, O ye servants of the LORD. For ye will do nothing out of place by praising your Lord as servants. And if ye were to be for ever only servants, ye ought to praise the Lord; how much more ought those servants to praise the Lord who have obtained the privilege of sons? —Augustine.