God is also the immortal One dwelling in unapproachable light. Concerning this, 1 Timothy 6:16 says, “Who alone has immortality, dwelling in unapproachable light, whom no man has seen nor can see, to whom be honor and eternal might. Amen.” Although the Father dwells in unapproachable light, we not only can approach Him in Christ, but we also can have fellowship with Him.
Hebrews 12:29 says, “Our God is also a consuming fire.” He is a consuming fire in His holiness and severity. God is holy; holiness is His nature. Whatever does not correspond to His holy nature He, as the consuming fire, will consume.