1. The heavens declare the glory of God (Ps. 19:1).
2. The man who delights in God’s law is blessed (Ps. 1:1–2).
3. Jesus quoted the first line of Psalm 22 (a psalm which predicted His death) while on the cross (Matt. 27:46; Mar. 15:34).
4. The longest chapter in the Bible is Psalm 119, which contains 176 verses.
5. Psalm 2 speaks of how vain it is for nations to exalt themselves against Christ (cf. Acts 4:24–30).

In the book of Psalms, God is glorifying Himself through worship at all times, so that He might demonstrate His superior goodness in the salvation sinners, the damnation of the wicked, and for the preservation of His people for His eternal glory, and their eternal joy.

The Psalms are the product of multiple authors. The Bible clearly identifies the authors of 101 psalms (mostly through the headings of particular psalms, but also through other passages of Scripture).

1. David wrote 75 psalms.
2. Asaph wrote 12 psalms.
3. The Sons of Korah wrote 11 psalms (including Ps. 88, which they coauthored with Heman the Ezrahite)
4. Solomon wrote Psalms 72 and 127.
5. Ethan the Ezrahite wrote Psalm 89.
6. Moses wrote Psalm 90.

The Bible does not clearly identify the author(s) of the remaining 48 psalms. However, the fact that Psalms 96, 105, and 106 bear similarities to a Davidic psalm recorded in 1 Chron. 16:7–36 suggest that they are Davidic in origin.

Psalm 90 (authored by Moses and probably the oldest Psalm) was written sometime between 1445 and 1405 B.C. The Book of Psalms was probably completed by Ezra’s time (424 B.C.).

“The law of the Lord is perfect, converting the soul;
The testimony of the Lord is sure, making wise the simple;
The statutes 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 judgments 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 honeycomb.
Moreover by them Your servant is warned,
And in keeping them there is great reward.”

Psalm 19:7–11

“The Lord is my shepherd;
I shall not want.
He makes me to lie down in green pastures;
He leads me beside the still waters.
He restores my soul;
He leads me in the paths of righteousness
For His name’s sake.”

Psalm 23:1–3

“Create in me a clean heart, O God,
And renew a steadfast spirit within me.
Do not cast me away from Your presence,
And do not take Your Holy Spirit from me.
“Restore to me the joy of Your salvation,
And uphold me by Your generous Spirit.
Then I will teach transgressors Your ways,
And sinners shall be converted to You.”

Psalm 51:10–13

1. We ought to delight in the law of God.
2. We ought to recognize God’s glory in the heavens.
3. The Word of God is pure, sure, perfect, and sufficient.
4. We ought to center our lives on praising the Lord.
5. We ought to trust in the sovereign hand of God. 

1. God’s Anointed King (Ps. 2)
2. The Resurrection (Ps. 16:9–10)
3. The Crucifixion (Ps. 22)
4. The Good Shepherd (Ps. 23)
5. Hated Without Cause (Ps. 69:4)
6. Sitting at the Right Hand of God (Ps. 110:1)
7. The Priesthood of Melchizedek (Ps. 110:4)
8. The Cornerstone (Ps. 118:22–23)

1. Book I (Ps. 1–41)
2. Book II (Ps. 42–72)
3. Book III (Ps. 73–89)
4. Book IV (Ps. 90–106)
5. Book V (Ps. 107–150)