“As for God, His way is perfect: the word of the LORD is tried: He is a buckler to all those that trust in Him.” Psalm 18:30 (KJV)
The Person of God is the central character of this text. He is the central Character through the whole of Scripture; both Old and New Testaments.
We see that His way is perfect. He is blameless; and His way is blameless; and all who walk in Him will be blameless.
Next, we see that His Word is “tried” or proven. It forever stands the test of time and of our lives. It is never changing, just as God Himself never changes. He is Immutable; His Word is Immutable as well; therefore He and His word can be trusted. Unlike mankind always changing. The laws of man are ever changing; thus, what can we believe? What can we trust? Who can we trust among humankind who stand on nothing firm, solid, and sure? The Word of God is sure, and will forever stand (Psalm 119:89). It is just as relevant today as it was the day it was penned by the inspired men God used to speak it.
The LORD is our “buckler” our shield. The shield is used to guard the soldier from the blows of the enemy’s weapon, such as a battle axe, or take the blows of the fiery darts which are fired from a distance. The shield of God’s protection will not fail to protect; as long as we are in His way.
I am the way, the truth and the life: no man cometh unto the Father, but by Me. John 14:6
His way is perfect. Walk in Him. Not one word He has spoke will fail.