Accepting Christ as our Savior and knowing we are accepted in Christ are two totally different sides of the same salvation we come to experience in Him. Acceptance in Christ is a precursor to having internal peace.
Being intentional with reading God's Word allows Christians to experience His Presence instead of being in His Presence. The differences are huge. One deepens our relationship with God, while the other keeps us stagnant and unfruitful
"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