The fall of man came as a result of man’s wilful disobedience to God’s command. In choosing to disobey God and rather obey the devil, man was aligning himself with the devil who is the enemy of God. This singular act introduced sin into the world and brought about many effects; a few of which are discussed below.
1. Man became separated from God.
From the beginning, man was created to fellowship with God which is why Man was created in the same image and likeness as God. In Gen 3:8, we see the scriptures paint a picture of God walking in the garden in the cool of the day. This was obviously a familiar sound and sight to Adam & Eve that’s why they could recognise it was God. We can then conclude that Adam & Eve had constant fellowship with God before the sin was introduced at the fall. However, after the fall this God-nature that man had was now corrupted and perfect fellowship with God no longer possible the first thing we see is Adams reaction to the presence of God. For the first time Adam was afraid of the presence of God; fear had now been introduced by sin. While the normal response of a child to his father’s presence should be to eagerly run into his fathers embrace, this was not the case with Adam because from that point on, his nature had changed, and he no longer carried the nature of God. God in His love instituted the offering of animal blood as an atonement for man’s sin, but this could not restore perfect fellowship between God and man. Hebrews 9:8 says: the Holy Spirit indicating that the way into the Holiest of All was not yet made manifest while the first tabernacle was standing.
While God throughout history remained involved in the affairs of men working out the salvation story, man would never be able to fellowship with God on the same level as Adam did before the fall because mans nature had changed fundamentally.

2. Sin and death were passed to all men.
While it was Adam and Eve who committed the original sin, because their nature spiritually had now been corrupted by sin and so they now carried the sin nature, all their offspring carried this sin nature by default. Romans 5:12 say; Therefore, just as through one man sin entered the world, and death through sin, and thus death spread to all men, because all sinned. Hebrews 7:9-10 explains the concept of vicarious liability where Levi was said to have paid tithes to Melchizedek because he was in Abraham’s loins when Abraham gave tithes to Melchizedek. The same way, the entire world came from the loins of Adam and so Adams sin is passed unto them automatically.

3. Man became an enemy of God.
Adam in choosing to disobey God and obey the devil became a slave of the devil and an enemy of God. By choosing to take sides with the enemy of God, Adam himself became an enemy of God and so the whole human race became enemies of God. Romans 5:10 says; For if when we were enemies we were reconciled to God through the death of His Son, much more, having been reconciled, we shall be saved by His life. Eph 2:14 – 16 also talks about Christ abolishing in His flesh the enmity through His death on the cross. This shows that man became an enemy of God as a result of the fall.