If we are in God, then our actions are of the Light, of God Himself. This is how we are able to come to and stand in the Light of the World. We have identified ourselves as belonging to that Light. Hence we no longer hide from the Light; we step into it so that our deeds are exposed as being not our own, but His. Our deeds are deeds of Light; of Goodness and do not emanate from us, but from the Son of God and from His Holy Spirit who is within us. For, from out of our hearts, come goodness and mercy, love and kindness, peace and holiness. And this, not of ourselves, but of God, lest any of us should suddenly be inclined to boast.
Those who remain in the darkness of hell, of sin — they hide from the Light for the Light of the world exposes all that does not belong to Him, all that stands outside of His Holy Spirit and His domain of influence. Those in the darkness do hide from the Light so that their deeds will not be exposed for what they are — rubbish, worthless acts, doomed deeds. These are destined to be burned up, to float away as ash on the winds of destruction.
Let us rejoice for “we are not of those who shrink back and are destroyed, but of those who have faith and preserve their souls.” (Hebrews 10: 39, ESV)