Today's Psalm is Psalm 139, another Psalm of David.
This is a worship Psalm, where the Psalmist praises God for His greatness as shown by His attributes. Four great attributes of God are described: His omniscience, His omnipresence, His role in the creation of the individual, and His holiness.
The Psalm opens with the Psalmist acknowledging that God knows everything about him: what he does, what he thinks, even what he is about to say! Such knowledge is too wonderful to understand; the Psalmist just acknowledges it without any hope of understanding the sovereignty of God.
The Psalmist continues by noting that there is nowhere he can go to escape from God; not in heaven, nor in Sheol (death), not in the remotest part of the sea, nor in utter darkness. God is with us always.
The Psalmist then recounts how God has formed his inward parts, how he was woven in his mother's womb. He marvels not only at the miracle of life, but that God has ordained all his days.
He closes the Psalm by asking God to slay the wicked, and noting that he hates the wicked; that they are his enemies as they are God's. This runs counter to how we often view God's mercy and forgiveness, but I think we as Christians often forget that while God forgives, He also hates wickedness. Even as we forgive, we should hate wickedness more than we do. I know that a lot of the things I do that I shouldn't often begin with the thought "it's not that bad...". The Psalmist asks God to search him, know him, and try his thoughts, and lead him, a beneficial pair of verses to memorize for times when we are tempted or unsure.
Search me, O God, and know my heart;
Try me, and know my anxieties;
And see if there is any wicked way in me,
And lead me in the way everlasting.
Scripture taken from the New King James Version. Copyright © 1982 by Thomas Nelson, Inc. Used by permission. All rights reserved.