If there’s something worthy to take note of, it is that a believer is a man that doesn’t have a faith problem neither does he have a spirit problem. Jude 1:20 says,
“But ye, beloved, building up yourselves on your most holy faith , praying in the Holy Ghost”
Most holy means something that is perfect or something that’s blameless. The faith of the man in Christ is the faith of the Son of God (Galatians 2:20)
Romans 8:9-11 says,
“But ye are not in the flesh, but in the Spirit, if so be that the Spirit of God dwell in you. Now if any man have not the Spirit of Christ, he is none of his. And if Christ be in you, the body is dead because of sin; but the Spirit is life because of righteousness. But if the Spirit of him that raised up Jesus from the dead dwell in you, he that raised up Christ from the dead shall also quicken your mortal bodies by his Spirit that dwelleth in you”.
Ephesians 1:13 says,
“In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that Holy Spirit of promise”
From these scriptures above, we can see that the believer has the Spirit of God resident in him, so the believer is not lacking in Spirit and faith. However, the believer can lack in knowledge. Once a man becomes born again, his spirit gets recreated but his mind and body does not get changed. The mind is the seat of knowledge, this calls for the renewal of the mind. Romans 12:2 says,
“And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God”.
Renewal of the mind comes via the knowledge of God’s word. There’s always the need to have precise and accurate knowledge of the realities of the Spirit to dawn on our mind. This is to enable us become much more effective in our faith as believers.
Philemon 1:6 says,
“That the communication (fellowship, partnership )of thy faith may become effectual by the acknowledging( precise and accurate knowledge; Understanding) of every good thing which is in you in Christ Jesus”.
We become better in our Christian walk when we get to know more of God’s word. In fact, spiritual growth is primarily you growing in the knowledge of God’s word (1 Peter 2:2). This is why you would always see Paul mostly pray in most of his epistles to the churches that the believers might grow in knowledge (Ephesians 1:16-19; Colossians 1:9-11; Philemon 1:6), because the journey of the faith is a journey of knowledge. Knowledge births out effectiveness. The knowledge here is not human knowledge but precise and accurate revelation knowledge .
As believers we must desire to grow in the knowledge of God’s word, we must desire to grow in our understanding of spiritual realities. It’s first of all a desire; it is not automatic. How much of God’s word have you received into your heart? God’s word is what we need as believers to grow and become better in our walk with God.