DISOBEDIENT. Hebrews 3:18 Never settle for being an immature Christian. Carnality gives in to the tempting attractions of the world, our own self-focused fears, and pressures from those who claim to have “more light.” Instead, follow the Lord wholeheartedly and experience the blessings of confidence, rest, and victory in Jesus. Aim to be complete and mature in all the will of God. When we desire and are willing to fully follow our Lord Jesus Christ, we enter into a rest that is available to God's people.
Unbelief is more of an attitude of the heart than an act of the mind. “An evil heart of unbelief” causes disobedience to God. Unbelief isn't about people being unable to understand; it's about their unwillingness to trust. Trust involves placing ourselves in God’s hands through simple faith in Him. An unbeliever chooses to stay in their own understanding, as if they have the final say on salvation. The attitude of unbelief leads to neglect, forgetfulness, and a choice to remain blind until we think we understand what is ultimately unknowable—can anyone truly understand the mind of an infinite God?