Treasury of Scripture Knowledge
He that believeth on the Son of God hath the witness in himself: he that believeth not God hath made him a liar; because he believeth not the record that God gave of his Son.
The Holy Spirit Himself bears testimony [along] with our [human] spirit that we are the children of God.
And because you are [His] children, God sent the Holy Spirit of His Son into our hearts, to call out, "Abba," [which means] "Father."
For you died [with Christ, See 2:20], and your life is [now] hidden with Christ in [fellowship with] God.
2 Peter 1:19
And we have the message of the prophets [confirmed to us] as more certain [than ever]. So, you will do well to pay careful attention to it, as [you would] to a lamp in a dark place, until the day dawns and the morning star rises in your hearts [Note: This probably refers to the beginning of the Gospel age, when people would become enlightened to its message].
"The person who has an ear should listen to what the Holy Spirit is saying to the churches. To the person who has victory [in the Christian life] I will give some of the hidden manna, and I will [also] give him a white stone with a new name written on it, which no one understands, except the one who receives it."
1 John 1:10
If we claim that we have not committed sins, we are [in effect] calling God a liar [i.e., because He says we have] and His word [i.e., the real truth about the matter] is not in our hearts.
The person who has accepted Jesus' testimony has confirmed this [fact], that God is truthful.
And you do not keep His message living in your [hearts], for you do not believe [in] the One whom God sent [i.e., in Jesus].
Pay attention, brothers, so that there will not be in any one of you an evil heart of unbelief, [resulting] in falling away from the living God.
And [so] we see that they were not able to enter [a state of rest with God] because of [their] unbelief.