This Psalm combines sections of Psalm 57:7-11 and Psalm 60:5-12.

Psalm 57 and Psalm 60 are in their titles tied to specific circumstances in the life of David. There are some 13 Psalms that do this and these are two of them.

This Psalm stresses
108:3 Giving thanks to the LORD
108:4 God's lovingkindness and faithfulness
108:7-9 God's complete sovereignty over Israel and their neighbors
108:11-13 God alone is responsible for victory. Trust in men is vain- Jer. 17:5-8.

The Psalm foreshadows the salvation Jesus gives
108:8 Judah the leader- Heb. 7:14
108:5 Be exalted- John 3:14; 8:28; 12:32-33
108:4 The cross is the ultimate display of His lovingkindness and faithfulness.