Now this is eternal life: that they know you, the only true God, and Jesus Christ, whom you have sent.
NIV
And this is eternal life: [it means] to know (to perceive, recognize, become acquainted with, and understand) You, the only true and real God, and [likewise] to know Him, Jesus [as the] Christ (the Anointed One, the Messiah), Whom You have sent.
AMP
And this is life eternal, that they might know thee the only true God, and Jesus Christ, whom thou hast sent.
KJV
So that you may know the certainty of the things you have been taught.
NIV
[My purpose is] that you may know the full truth and understand with certainty and security against error the accounts (histories) and doctrines of the faith of which you have been informed and in which you have been orally instructed.
AMP
That thou mightest know the certainty of those things, wherein thou hast been instructed.
KJV
The Lord is not slow in keeping his promise, as some understand slowness. Instead he is patient with you, not wanting anyone to perish, but everyone to come to repentance.
NIV
The Lord does not delay and is not tardy or slow about what He promises, according to some people's conception of slowness, but He is long-suffering (extraordinarily patient) toward you, not desiring that any should perish, but that all should turn to repentance.
AMP
The Lord is not slack concerning his promise, as some men count slackness; but is longsuffering to us-ward, not willing that any should perish, but that all should come to repentance.
KJV
The heart is deceitful above all things and beyond cure. Who can understand it?
NIV
The heart is deceitful above all things, and it is exceedingly perverse and corrupt and severely, mortally sick! Who can know it [perceive, understand, be acquainted with his own heart and mind]? [Matt. 13:15-17; Mark 7:21-23; Eph. 4:20-24.]AMP
The heart is deceitful above all things, and desperately wicked: who can know it?
KJV
Dear friends, let us love one another, for love comes from God. Everyone who loves has been born of God and knows God.
NIV
Beloved, let us love one another, for love is (springs) from God; and he who loves [his fellowmen] is begotten (born) of God and is coming [progressively] to know and understand God [to perceive and recognize and get a better and clearer knowledge of Him].
AMP
Beloved, let us love one another: for love is of God; and every one that loveth is born of God, and knoweth God.
KJV
Above all, you must understand that no prophecy of Scripture came about by the prophet's own interpretation of things.
NIV
[Yet] first [you must] understand this, that no prophecy of Scripture is [a matter] of any personal or private or special interpretation (loosening, solving).
AMP
Knowing this first, that no prophecy of the scripture is of any private interpretation.
KJV
Then Peter began to speak: "I now realize how true it is that God does not show favoritism"
NIV
And Peter opened his mouth and said: Most certainly and thoroughly I now perceive and understand that God shows no partiality and is no respecter of persons
AMP
Then Peter opened his mouth, and said, Of a truth I perceive that God is no respecter of persons:
KJV
For we do not have a high priest who is unable to empathize with our weaknesses, but we have one who has been tempted in every way, just as we are – yet he did not sin.
NIV
For we do not have a High Priest Who is unable to understand and sympathize and have a shared feeling with our weaknesses and infirmities and liability to the assaults of temptation, but One Who has been tempted in every respect as we are, yet without sinning.
AMP
For we have not an high priest which cannot be touched with the feeling of our infirmities; but was in all points tempted like as we are, yet without sin.
KJV