1 John 5:13-21 - Our Assurance Of Eternal Life
13 I have written these things to you people, who believe in the name [i.e., in the person and work] of the Son of God, so that you can have assurance that you have [the hope of] never ending life. [See Titus 1:2; 3:7; Mark 10:30].
14 And this is [how we can express] boldness in our relationship with God: Whatever we ask [of God, in prayer], so long as it is in harmony with His will for us, [we know] He hears our request. 15 And if we can be sure that He hears our request for whatever we ask [of Him], we can [also] be certain that we [will] have whatever we have requested from Him.
16 If anyone [of you] observes his brother [or sister] sinning [in a way that would not lead] to [spiritual] death, he should ask [God, in prayer, to help that person], and God will give him [spiritual] life, [that is], to such ones, provided their sin is not leading to [spiritual] death. There is such a sin that leads to [spiritual] death. [See Heb. 6:4-6; I Tim. 5:6; Heb. 10:26-27; II Pet. 2:20-22]. I am not suggesting that you should ask [God, in prayer] about such a situation. 17 All wrongdoing is sinful, and [yet] there is a situation where [a person's] sin does not lead [him] to [spiritual] death.
18 We know that every person who has been [spiritually] conceived [by God and eventually born] does not continue in [a life of] sin, but God's one and only conceived [Son] keeps him [from continuing to sin], and the evil one [i.e., Satan] does not continue to touch him [i.e., continue to control his life].
19 We [also] know that we are [children] of God and that the people of the whole world lie under [the control of] the evil one [i.e., Satan].
20 And [in addition], we know that the Son of God has come [in a physical body, See 4:2] and has given us understanding, so that we can know the True One [i.e., God], and that we are in [fellowship with] the True One, even His Son Jesus Christ. This Son is the true God and eternal life.
21 Little children [i.e., dear ones], protect yourselves from [worshiping] idols.