"You are the light of the world." Matthew 5:14-16
Christ was giving instructions to His disciples, His followers, and to us as believers.
Christ referred to Himself as the Light of the world (John 8:12 ). His believers must not conceal His light.
John, the evangelist, through his metaphor of "light", eloquently arrives at the illumination of men by way of the light of Christ. We are able to understand Christ's light dawning on the path of grace and truth when we believe in Him, His sacrifice at Calvary on the cross for our sins, and His resurrection ~ His incredible victory over death.
John writes in his first epistle that we who pretend to know the light and yet hate our brothers, remain in darkness; he who lives in the light of Christ has love for his brothers, and there is nothing in him to cause his brother to fall. He who regards his brother with hatred is bound in darkness, not knowing where he goes because the darkness blinds his eyes. 1 John 2:9-11
At the very beginning of John's letter, he proclaimed the message we have heard from Christ, that God is light and there is no darkness in Him. If we say we are with Him and yet we walk in darkness, we are liars and we are not practicing truth. 1 John 1:5-7
The darkness of mankind, opaque and despairing, can never extinguish the Divine Light of our Lord. 1 John 2:7-8
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