Adam and Eve had sinned and they immediately clothed themselves with the inadequate covering of fig leaves sewn together.
  The Lord God found Adam and Eve cowering in their fig leaf coverings behind the trees in the cool of the evening. 
  Guilt and fear do that – we provide our own inadequate “reasons” for what we think, say and/or do.  Our excuses before others, and more importantly our excuses before God, are seen as fig leaves sewn together by our own hand.
  Adam and Eve had a problem (and so do we)…that problem was sin.  God’s solution was immediate for Adam and Eve and it has been given to us also.  The promise of Messiah was immediately given, to come, crush and defeat sin and Satan and death. (For death was the result of this couple’s sin)

(Amplified) Genesis 3:15 “And I will put enmity between you and the woman, and between your offspring and her Offspring; He will bruise and tread your head underfoot, and you will lie in wait and bruise His heel.”

  God alone has the power to fully overcome Satan, sin and death.  He did that for us through His only begotten Son and our Savior, the Lord Jesus Christ.
  The Offspring of the woman is the Lord Jesus Whose heel was bruised by the nails that were hammered into the cross.
  Satan’s head was tread underfoot; he was defeated by the very action of Jesus Christ’s sacrificial death on the cross of crucifixion.

  The beginning of salvation began immediately after the first sin.  The promise of God was given and followed through by Jesus Christ.
(NASB) John 3:16 “For God so loved the world, that He gave His only begotten Son, that whoever believes in Him shall not perish but have eternal life.”

  The conditional “that whoever believes in Him shall not perish but have eternal life” is for all whose trust and faith are in Jesus Christ and what He has done on the cross. 

 

Salvation is dependent on the Lord Jesus Christ, alone.

Salvation is an absolute must to be saved from our sins.