"The LORD is my rock, and my fortress, and my deliverer; my God, my strength, in whom I will trust; my buckler, and the horn of my salvation, and my high tower" (Psalm 18:2).
David, in writing this psalm, used the word my eight times in verse two to show what God was to him personally and how God had given him great deliverance from his enemies. He knew that God was personally interested in him, and that He was not a God who was so far away He was untouchable and non-communicative. David called God:
My rock: Paul said that the Rock that followed Moses in the wilderness was Christ (I Corinthians 10:4). Christ is the Rock of our salvation. We are eternally secure in Him.
My fortress: We are kept secure in God's garrison by His mighty power (I Peter 1:5). He is our impregnable fortress.
My deliverer: He has delivered us from sin, from the wrath to come, and one day even from death (I Thessalonians 1:10).
My God: All that God is, in His person and power, is available to every Christian. We can say with authority: I am His and He is mine! (Isaiah 43:1).
My strength: God gives strength to those who recognize and admit that they are weak. "My strength is made perfect in weakness" (II Corinthians 12:9).
My buckler: God is our shield of protection. "His truth shall be thy shield and buckler" (Psalm 91:4). "Taking the shield of faith, wherewith ye shall be able to quench all the fiery darts of the wicked" (Ephesians 6:16).
My horn of salvation: As a horned beast drives into his enemy, even so Christ powerfully confronts our enemies and brings us salvation (II Samuel 22:3).
My high tower: In our high tower, we are out of the reach of our enemies and completely safe. "The name of the LORD is a strong tower: the righteous runneth into it, and is safe" (Proverbs 18:10). NPS