The principal objective and advantage of engaging with God directly through His word is that we get to know Him for ourselves, first hand. No intermediaries, no go-betweens, no middle men. The scriptures are quite literally, “God – straight from the horse’s mouth”.

Of course knowledge of God comes through Christ. John 1:18 states: No one has ever seen God.
The One and Only Son—the One who is at the Father’s side—He has revealed Him.
In other words, the Son is God revealed. He is the One in whom we see God the Father.

In John 14:8 the Lord Jesus Christ Himself declares, ...The one who has seen Me has seen the Father.
Again, we see that Jesus is in fact the Father revealed.

In His High priestly prayer in John 17:3 The Lord Jesus defines eternal life like this: And this is eternal life, that they know you the only true God, and Jesus Christ whom you have sent.

Knowing God and Jesus is what basically constitutes eternal life. As we engage with God through His word and grow in our knowledge of Him, we are in effect enriching our lives, the eternal life which we already have by virtue of our saving knowledge of God through His Son Jesus Christ.

Further down the years after the establishment of the Church, the writer of Hebrews emphatically asserts in 1:3, The Son is the radiance of God’s glory and the exact expression of His nature, sustaining all things by His powerful word.

We see therefore that we get to know God in Jesus and we get to know Jesus in the Scriptures – both Old and New Testament. In his discourse with the disciples on the road to Emmaus immediately after His resurrection, the Lord interpreted to them those things concerning Himself in all the Scriptures, i.e. in the Old Testament for the New Testament was not authored yet at the time.  Luke 24:27
 Then beginning with Moses and all the Prophets, He interpreted for them the things concerning Himself in all the Scriptures.

The studious and prayerful engagement with God through the scriptures generates a personal knowledge of God that feeds into the fabric of one’s character quietly building confidence in God as a result of the first hand knowledge gained through the exercise.  As that knowledge gradually grows and becomes intimate, it sinks deep and penetrates into our psyche, into the fabric of who we are, addressing and bringing fulfillment to the innermost quests we all have in life – the desire for unconditional love and acceptance, for abiding friendship, for inner peace, happiness etc. As we discover God for ourselves through the scriptures and continue to engage with Him, these deepest longings and legitimate desires of the human nature are almost imperceptibly realised and steadily augmented and strengthened over time.

As you engage with God through his word and get to know Him for yourself, you are ensuring that your roots go deeper and last longer than superficial roots.
Colossians 2:6-7  Therefore, as you have received Christ Jesus the Lord, walk in Him, rooted and built up in Him and established in the faith, just as you were taught, overflowing with gratitude.

It is not enough to only receive Christ Jesus as Lord but equally essential to be rooted and built up in Him, in His person. Otherwise you will fall at the smallest hint of opposition.  Matthew 13:21 Yet he has no root in himself, but is short-lived. When pressure or persecution comes because of the word, immediately he stumbles.

Engaging with God through His word is the primary means of rooting and establishing ourselves up in Christ leading to a standing firm in our commitment in the face of adversity and heretic teaching.

Engaging with God through His word not only gives us a knowledge of who He is but of His ways too. We learn to understand why He does what He does and how He does it. As we grow in this knowledge we learn to discern whether God is in something or not, whether something is from God or not, whether something is in keeping with His character or not.

Knowing God intimately and personally is what makes us complete as a person. It is our knowledge of God deep down and the intimate relationship we have with Him which completes us as a person. We are made complete in Him and reach the highest level of satisfaction and contentment when our relationship is based on a personally discovered and ever increasing knowledge with Him.