1 John 5:11-19

And the testimony is this: God has given us eternal life [we already possess it], and this life is in His Son [resulting in our spiritual completeness, and eternal companionship with Him]. He who has the Son [by accepting Him as Lord and Savior] has the life [that is eternal]; he who does not have the Son of God [by personal faith] does not have the life. These things I have written to you who believe in the name of the Son of God [which represents all that Jesus Christ is and does], so that you will know [with settled and absolute knowledge] that you [already] have eternal life. This is the [remarkable degree of] confidence which we [as believers are entitled to] have before Him: that if we ask anything according to His will, [that is, consistent with His plan and purpose] He hears us. And if we know [for a fact, as indeed we do] that He hears and listens to us in whatever we ask, we [also] know [with settled and absolute knowledge] that we have [granted to us] the requests which we have asked from Him. If anyone sees his brother committing a sin that does not lead to death, he will pray and ask [on the believer’s behalf] and God will for him give life to those whose sin is not leading to death. There is a sin that leads to death; I do not say that one should pray for this [kind of sin]. All wrongdoing is sin, and there is sin that does not lead to death [one can repent of it and be forgiven]. We know [with confidence] that anyone born of God does not habitually sin; but He (Jesus) who was born of God [carefully] keeps and protects him, and the evil one does not touch him. We know [for a fact] that we are of God, and the whole world [around us] lies in the power of the evil one [opposing God and His precepts].