1 Samuel 3:21

Then the Lord appeared again in Shiloh. For the Lord revealed Himself to Samuel in Shiloh by the word of the Lord.—1 Samuel 3:21

The Lord revealed Himself to Samuel by His word.  One of the ways God reveals Himself to us is by His word, the Scriptures. I am so thankful for His word!  One of the first things I can remember thinking only seconds after I got saved (I got saved as I was alone reading a newly purchased that day bible) was how awesome it was to have this book to guide me thru life. I truly did not know how lost I was until He found me.  For a while...longer than I would care to admit, I lived like it would disappear.  I slept with that Bible under my pillow, kept it on the desk in my office at work and took it to lunch with me daily. It was literally never more than an arm’s reach away from me at all times.

God, who at various times and in various ways spoke in time past to the fathers by the prophets, has in these last days spoken to us by His Son, whom He has appointed heir of all things, through whom also He made the worlds; who being the brightness of His glory and the express image of His person, and upholding all things by the word of His power, when He had by Himself purged ourfn sins, sat down at the right hand of the Majesty on high,—Hebrews 1:1-3

For whatever was written in former days was written for our instruction, that through endurance and through the encouragement of the Scriptures we might have hope. (Romans 15:4, ESV)

All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness,
that the man of God may be complete, equipped for every good work. (2 Timothy 3:16-17ESV)

For the word of God is living and active, sharper than any two-edged sword, piercing to the division of soul and of spirit, of joints and of marrow, and discerning the thoughts and intentions of the heart. (Hebrews 4:12, ESV)

Now Jesus did many other signs in the presence of the disciples, which are not written in this book; but these are written so that you may believe that Jesus is the Christ, the Son of God, and that by believing you may have life in his name. (John 20:30-31ESV)

since you have been born again, not of perishable seed but of imperishable, through the living and abiding word of God; for "All flesh is like grass and all its glory like the flower of grass. The grass withers, and the flower falls, but the word of the Lord remains forever." And this word is the good news that was preached to you.  (1 Peter 1:23-25ESV)