Many Christian believers are not born again. They are sinners and have a sinful nature. Sinners will not enter the kingdom of heaven. That is why you need to be born again, born of God, to be a child of God. We read in 1 John 3:9 ” 9No one who is born of God practices sin, because His seed abides in him; and he cannot sin, because he is born of God. 10By this the children of God and the children of the devil are obvious: anyone who does not practice righteousness is not of God, nor the one who does not love his brother.” We read in 2 Peter 1:1 “Simon Peter, a bond-servant and apostle of Jesus Christ, To those who have received a faith of the same kind as ours, by the righteousness of our God and Savior, Jesus Christ: 2Grace and peace be multiplied to you in the knowledge of God and of Jesus our Lord; 3seeing that His divine power has granted to us everything pertaining to life and godliness, through the true knowledge of Him who called us by His own glory and excellence. 4For by these He has granted to us His precious and magnificent promises, so that by them you may become partakers of the divine nature, having escaped the corruption that is in the world by lust. 5Now for this very reason also, applying all diligence, in your faith supply moral excellence, and in your moral excellence, knowledge, 6and in your knowledge, self-control, and in your self-control, perseverance, and in your perseverance, godliness, 7and in your godliness, brotherly kindness, and in your brotherly kindness, love. 8For if these qualities are yours and are increasing, they render you neither useless nor unfruitful in the true knowledge of our Lord Jesus Christ. 9For he who lacks these qualities is blind or short-sighted, having forgotten his purification from his former sins. 10Therefore, brethren, be all the more diligent to make certain about His calling and choosing you; for as long as you practice these things, you will never stumble; 11for in this way the entrance into the eternal kingdom of our Lord and Savior Jesus Christ will be abundantly supplied to you.” Those who have been born again demonstrate by their way of living, that they have a new nature, a divine nature. They are not sinners any more. Are you born again? Have you acquired the divine nature? Are you a child of God?
May Jesus bless you.