Genesis 1:3, John 1 and 2 Cor 4:6

John 1 The Apostle John derives his explanation about Jesus being the Word of light, that 

God spoke or prophesied from the beginning, Light from Light, God from God as narrated in

Gen 1:3.
Which represents to us a manifest pledge of His faithfulness towards us in the formation of creation at the very beginning, for this is His WORD of intention to send His beloved Son to inhabit human flesh, for expression of that true Light and the resurrection of the mortal body, through Him, for salvation of all who choose to return to Him from the confusion, deception and darkness of our initial ill advised choices in the sin of Adam.

This knowledge that the Son of God in the commanded express image of God, in essence of His WORD, who existed before Adam was made, gives us that assurance that every human being was predestined by the election of the Father, no matter of what nationality, of Jew or of Gentile, to obtain eternal life and salvation through Jesus Christ even before the initiation of our sin in nature, so that salvation may be sought and expected by use of our free will choice, to choose differently now that we see the full expression of His glorious WORD in the flesh and begin to know the love that He has loved us with. John 3:16

The Apostle Paul also derives from the Gen 1:3 commandment of Light to shine out of darkness, in his explanation of the gospel that is now revealed, speaking of that eternal Light of God's Glory which preceded the advancement of the race of Adam, which is now unveiled in the same flesh of humanity by the command of God, through the introduction of Jesus in the flesh, Light commanded from Light to shine out of the darkness of human flesh, by which we also who believe receive Light from Him, His Spirit dwelling in us by faith, by the WORD of life which we have received from Him. Christ revealed is also shining out of us as we walk in the Light, beholding His face. 1 John 1:7

2 Cor 4:6

For God, who commanded the light to shine out of darkness, hath shined in our hearts, to give the light of the knowledge of the glory of God in the face of Jesus Christ.

Since this is the case that God so loves us beloved, as to present Himself, to us and for us, in the occupation of human flesh and the pouring out His precious blood to give us the opportunity and choice to return love to Him, as He stripped Himself bare in our sight for the zeal of His pledge of salvation to us. We should not ignore His offer of mercy nor scoff at His great grace, but rather yield ourselves to Him in daily consecration of prayer and devotion of every effort to an equal response of love returned, to accept every confidence that it is God's good pleasure to give us every good and perfect gift from heaven, and in the end immortality in likeness to Jesus glorious and perfected body. For that has always been His good intention for us, because He prophesied it from the very beginning and then made good on His WORD by coming in person to save us from our sinful nature in Adam.