1. I said, I will take heed to my ways. David explains and illustrates the greatness of his grief by this circumstance, that, contrary to his inclination and resolution, he broke forth into the severest complaints.

2. I was dumb in silence. He now declares that this resolution of which he has spoken had not been a mere passing and momentary thought, but that he had shown by his conduct that it was indeed a resolution deeply fixed in his heart.

3. My heart became hot within me He now illustrates the greatness of his grief by the introduction of a simile, telling us that his sorrow, being internally suppressed, became so much the more inflamed, until the ardent passion of his soul continued to increase in strength.

4. O Jehovah! cause me to know my end. It appears from this, that David was transported by an improper and sinful excess of passion, seeing he finds fault with God. This will appear still more clearly from the following verses.

6. Surely man walketh in a shadow. He still prosecutes the same subject. By the word shadow, he means, that there is nothing substantial in man, but that he is only, as we say, a vain show, and has I know not how much of display and ostentation.

7. And now, O Lord! what do I wait for? David, having acknowledged that his heart had been too much under the influence of ardent and impetuous emotion, from which he had experienced great disquietude, now returns to a calm and settled state of mind; and from this what I have before stated is…

8. Deliver me from all my sins. In this verse the Psalmist still continues his godly and holy prayer. He is now no longer carried away by the violence of his grief to murmur against God, but, humbly acknowledging himself guilty before God, he has recourse to his mercy.

9. I was dumb Here David blames himself, because he had not preserved that silence which, as we have already seen, the violence of his grief forced him to break.