"... While you have the light, believe in the light, that you may become sons of light.” These things Jesus spoke, and departed, and was hidden from them.Then Jesus said to them, “A little while longer the light is with you. Walk while you have the light, lest darkness overtake you; he who walks in darkness does not know where he is going. But although He had done so many signs before them, they did not believe in Him, that the word of Isaiah the prophet might be fulfilled, which he spoke: “ Lord, who has believed our report? And to whom has the arm of the LORD been revealed?” Therefore they could not believe, because Isaiah said again:
“ He has blinded their eyes and hardened their hearts, Lest they should see with their eyes, Lest they should understand with their hearts and turn, So that I should heal them.”
These things Isaiah said when he saw His glory and spoke of Him. (John 12:35-41)
Elsewhere I have spoken of judicial blindness. This is a very real condition, and those who find themselves in that condition cannot see their own state.
The Anglican order of service is designed to help communicants walk in the light. The preaching of the Word of God and the affirmation of the historic creeds of the church precede the searching of the soul, personal confession of sin, absolution and covenant renewal in the taking of the communion.
Those who have eyes to see, and ears to hear, week-by-week, have an opportunity to maintain their personal sanctification before the Lord, and thus, "walk in the light as He is in the light."
This is not to say that the Anglican Church is the perfect church; it is not. However, there is much that God-fearing Christians can learn from the liturgy of the Anglican Church.
All Christians need to learn how to walk in the light, otherwise they risk the pronouncement upon themselves that Jesus declared over the apostate Jews: "He has blinded their eyes and hardened their hearts, lest they should see with their eyes, lest they should understand with their hearts and turn, so that I should heal them."