Pretty basic question.
Jesus told a couple of persons to go and sin no more.
Why do we sin?
What is it within us that makes us obey the evil one?
Is it the sin nature?
Are we born with it?
I believe we are.
I believe this is what makes us sin, even after being born again.
The Bible indicates we all have struggled against three "enemies of our soul" (and may still be struggling): The World, the Flesh and the devil. In
Ephesians 2:1-3 the apostle Paul points to each of these "enemies," explaining that every lost person lives in bondage to them.
Titus 3:3 offers a description of how that bondage manifests in a lost person's life:
(NASB)
3 For we also once were foolish ourselves, disobedient, deceived, enslaved to various lusts and pleasures, spending our life in malice and envy, hateful, hating one another.
Ugly stuff. But, the spiritually unregenerate person can only act in accord with their fleshly mind, which Paul told the believers at Rome was incorrigibly selfish and contrary to God's will.
Romans 8:5-8 (NASB)
5 For those who are according to the flesh set their minds on the things of the flesh, but those who are according to the Spirit, the things of the Spirit.
6 For the mind set on the flesh is death, but the mind set on the Spirit is life and peace,
7 because the mind set on the flesh is hostile toward God; for it does not subject itself to the law of God, for it is not even able to do so,
8 and those who are in the flesh cannot please God.
Until a person has been born-again, they can only operate in the flesh, genuine spiritual life found exclusively in the Person of the indwelling Holy Spirit. (
Romans 8:9-15; Titus 3:5-8; 1 Corinthians 6:19-20, etc.) Until the second birth occurs, those separated from God by the curse of the Fall have an uphill battle to fight - one that is waged apart from the inexhaustible power of their Almighty Maker. In spite of this, most lost folk, possessing a conscience, aren't as bad as they could be (
Romans 2:13-15); and Scripture points to a number of people who walked with God, who honored Him with their lives, though they were not yet recipients of the second birth. The Roman centurion, Cornelius, is a good example (
Acts 10:1-2), or Apollos, or the Ephesian believers, baptized by John the Baptist (
Acts 18:24-26; Acts 19:1-6).
In any case, what makes the born-again person sin after being made a "new creature in Christ"? (
2 Corinthians 5:17)
- Ignorance.
Many born-again people aren't properly discipled into the faith and so labor - sometimes for many decades - under a piecemeal understanding of their faith, totally ignorant of who they are in Christ and what God has accomplished for them already in him. "The me I see is the me I'll be." If I see myself as a spiritual pauper, still bound under the power of the World, the Flesh and the devil, is it any surprise when I live like such a person? Though they are made "dead unto sin and alive unto God through Jesus Christ," (
Romans 6:1-11), though "old things are passed away, behold, all things are made new," (
2 Corinthians 5:17), though they are "seated with Christ in heavenly places" (
Ephesians 2:5-6), though they are redeemed, justified and sanctified in Christ (
1 Corinthians 1:30), many born-again believers don't know that they are and so live accordingly.
- Lack of faith.
"Without faith it is impossible to please God..." (
Hebrews 11:6)
"The just shall live by faith." (
Galatians 3:11)
"We walk by faith, not by sight." (
2 Corinthians 5:7)
"Take heed, brethren, lest there be in any of you an evil heart of unbelief..." (
Hebrews 3:12)
Most unregenerate people act according to what they feel, and see, and experience; these are the things that chiefly define what is real and true for the unsaved person. But God says to His children, "Believe and
then see." Only when the child of God trusts what God has said, stepping out in faith in His promises to, and declarations about, them will they begin to experience those promises and truths. But, many times, born-again men face the power of, say, sexual lust and yield to it and think:
I'm not "dead to sin"; I'm not freed from the power of Self and sin like the Bible says; I'm not seated with Christ in heavenly places; I'm bound in sin, mired in the overpowering impulses of my Flesh. I feel the force of my lust and I give in to it, so clearly I'm not who God says I am, I'm not united with Christ in his death, burial and resurrection and thus freed from the power of sin.
Like the Israelites at the border of the Promised Land, there is, for the born-again believer, daily a choice to believe what God has said, or to believe what they feel and experience. Refusing to "walk by faith," they turn from the promise of God, as the Israelites did at the edge of Canaan, and live in the wilderness of unbelief and sin instead.
- No real "second birth."
The modern Church is crowded with "tares," with "false brethren," as Paul called them, who share in the life and work of the Family of God, thinking they are part of the family, but having no actual membership in it (
Matthew 13:24-30; Hebrews 6:4-8; 2 Corinthians 11:26; Galatians 2:4). These are they to whom Christ will say at the Final Judgment, "Depart from me. I never knew you." (
Matthew 7:21-23) They said a prayer, perhaps, and give intellectual assent to the Gospel, but have no intention of yielding their lives to God's constant control, or shaping their living according to the commands, principles and wisdom of Scripture. What they want is "fire insurance," not a transformed life that is a "living sacrifice" to God. (
Romans 12:1; Romans 8:29; Ephesians 2:10) These "tares" remain perennially bound in sin, not having actually been freed, through Christ, from the power of the World, the Flesh and the devil.