This text comes from The Army and Navy Hymnal, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
BLESSED is the man that walketh not in the counsel of the wicked,
Nor standeth in the way of shiners, nor sitteth in the seat of scoffers:
But his delight is in the law of the Lord;
And on his law doth he meditate day and night.
And he shall be like a tree planted by the streams of water,
That bringeth forth its fruit in its season.
Whose leaf also doth not wither; and whatsoever he doeth shall prosper.
The wicked are not so, but are like the chaff which the wind driveth away.
Therefore the wicked shall not stand in the judgment, nor sinners
in the congregation of the righteous.
For the Lord knoweth the way of the righteous; but the way of the wicked shall perish.
THE law of the Lord is perfect, restoring the soul:
The testimony of the Lord is sure, making wise the simple.
The precepts of the Lord are right, rejoicing the heart:
The commandment of the Lord is pure, enlightening the eyes.
The fear of the Lord is clean, enduring forever:
The ordinances of the Lord are true, and righteous altogether.
More to be desired are they than gold, yea, than much fine gold;
Sweeter also than honey and the droppings of the honeycomb.
Moreover by them is thy servant warned: in keeping them there is great reward.
Who can discern his errors? Clear thou me from hidden faults.
Keep back thy servant also from presumptuous sins; let them not have dominion over me:
Then shall I be upright, and I shall be clear from great transgression.
Let the words of my mouth and the meditation of my heart
Be acceptable in thy sight, Lord, my rock, and my redeemer.