The word abide is an important word, it means to dwell. The implication is that a person is to live in the word of God. To abide in the word, is to make your home in the Word of God. The result of abiding in God's Word is profound. For one thing Jesus said that it is an indication that you are a disciple. A disciple is one who seeks to be like his teacher. The instructions from the teacher are found in his word. Therefore, if a person wants to follow after Jesus, and walk with Jesus, it is important to dwell in the Word. Conversely, the person who does not abide in the Word of God will have a difficult time walking with the Lord. As you abide in God's Word, you get to "know" the truth. It is one thing to know about the truth, and quite another to truly know the truth. As we abide in the word, and know the word, there is a freedom that comes with it. The reason is because the truth of the word sets us free.
I believe that there is a direct connection to the word of God and spiritually vitality in the life of a believer. Some believers do not abide in the word, and what follows is tragic. They aren't following the Lord closely. They get caught up in a life of carnality. They are not aware of the truth, and thus they are bound instead of free. Freedom in Jesus, a joy in following Jesus, and a deeper knowledge of Jesus is found by abiding in God's Word. If you have drifted away from devotions, it is not too late to get back to it. Start in the New Testament. Make it a goal to get through the New Testament. Read at your own pace. Pray before you read. Ask the Lord to speak to you as you read. You will then begin to experience the joy of abiding in God's Word.