Psalm 57 is one of 14 Psalms with a historical note in its heading.  It teaches us that we should come to God whenever we need mercy and acknowledge that God is the source of our strength. 

Psalm 56 was written during a very tough crisis in the life of King David. Yet, the psalm reminds us to pray, to trust,  and to give praise to God because of who He is and because of His great care for those who are His own.

Psalm 55:22 is a terrific verse to memorize. It is helpful in that it reminds us to cast our burdens on God. The New Testament teaches the same idea in 1 Peter 5:6-7. 

King David begins Psalm 54  by specifically asking God to save him. He puts his trust in God and gives thanksgiving to God. God is the One who upholds our lives. We should commit to worshipping God.

Psalm 51 is one of the greatest prayers of confession of sin in the Bible. It teaches us that when we are confessing our sins before the Lord we need to be completely open and honest. 

Verse 22 of Psalm 44 is quoted in the New Testament book of Romans. We should always turn from lament to trust in God because we who are in Christ, have been saved.

Scholars suggest that Psalms 42 and 43 were originally one composition. They express longing for God's presence. They teach us about praying when we are discouraged or depressed. During those times we should let the Word of God lead us. 

The writer of Hebrews takes the words of King David in Psalm 40 and applies them to Jesus Christ. This teaches us that God is not honored by sacrifices and burnt offerings, but instead, Christ came and gave his own life on the cross to take the judgment for our sins. 

Psalm 39 reflects on the brevity of life on earth. However, we can trust and hope in God despite that brevity. We should repent and turn from sin and place our hope fully in the Lord. 

Psalm 38 teaches us that it is OK to lament to God and be honest in our prayers. It also teaches us to search our hearts for any sin. In the midst of suffering, we should put our trust in God.