When we encounter God, we are changed. We were changed in the past; we are changed in each encounter with God; we will be changed in the future. Moses was changed when he saw the burning bush. He is changed again on Sinai when he receives the law; he tries to explain the law to the people and his face glows with the glory of God to the point of distraction. He puts on the veil. When we are changed by our encounter with God what are we to do? Put on a veil? Hide how we are changed from the people that knew us before?
When Jesus was changed, he was seen without veil by Peter, James and John. Peter wanted to build booths – places of permanent residence on the mountain, but Jesus did not stay on the mountain and did not hold on to that moment of glory. Jesus went down the mountain and was met by a great crowd with great needs. Among the crowds, he will heal and call us to great faith so that we, too can help the crowds in his name.
When we encounter God we are changed and we should not hide that fact, but neither should we let it get in the way of our Lord's ministry through us.