Psalm 119:1 || New King James Version || Blessed are the [a]undefiled in the way, Who walk in the law of the Lord!
The law of the Lord is synonymous to the Word of God which needs to be walked in. The Word Of God has been made unto us like a road that we need to walk in Him. This is why we need to know the Word of God and know how to walk there.
When the Bible talks about a walk, it is always in three (3) folds, in our minds/heart, speech and in deed. When and if we know the Word of God, even in our hearts, not the entire Bible; we will know how to think, talk and act, which would and should be in line with the Word of God.
Whenever an idea comes to mind, the first you should think about is when and if it is in-line with the Word of God, when you need to talk, you first need to examine the words on your mind and heart, first on the premise of the Word of God, same way if and when you will need to respond or act in any situation, you first think, talk the Word of God in your heart before acting or talking it out; when you practice this, then we can confidently say, you are walking in the law or the Word of God.
Declaration
In the Name of Jesus, I walk in the light of the Word or law of God, I am undefiled, I walk with the Word or law of the Lord, in my heart/mind, tongue and deeds, I sustain the ability to be a living testimony of the Word God, amen!