Ok. Let’s look at 1 Timothy 3:16 first:
NKJV: 16 And without controversy great is the mystery of godliness: God was manifest in the flesh, justified in the Spirit, seen of angels, preached unto the Gentiles, believed on in the world, received up into glory.
NASB: By common confession, great is the mystery of godliness: He who was revealed in the flesh, Was vindicated in the Spirit, Seen by angels, Proclaimed among the nations, Believed on in the world, Taken up in glory.
NIV: Beyond all question, the mystery of godliness is great: He appeared in a body, was vindicated by the Spirit, was seen by angels, was preached among the nations, was believed on in the world, was taken up in glory.
KJV: And without controversy great is the mystery of godliness: God was manifest in the flesh, justified in the Spirit, seen of angels, preached unto the Gentiles, believed on in the world, received up into glory.
GNT: καὶ ὁμολογουμένως μέγα ἐστὶν τὸ τῆς εὐσεβείας μυστήριον· Ὃς ἐφανερώθη ἐν σαρκί, ἐδικαιώθη ἐν πνεύματι, ὤφθη ἀγγέλοις, ἐκηρύχθη ἐν ἔθνεσιν, ἐπιστεύθη ἐν κόσμῳ, ἀνελήμφθη ἐν δόξῃ.
They are all inspired and communicate God’s infallible Word to us in terms of the passage.
What is being conveyed in the passage? It is a common acceptance among the audience (among “the church of the living God”) that the mystery of godliness is great: He who was revealed in the flesh (Christ) was vindicated (or justified) in the Spirit, seen by angles, proclaimed among the nations, believed on in the world, and taken up in glory. This is the great mystery that comprises our faith.
Let’s look at 1 John 5:7
NKJV: 6 This is He who came by water and blood—Jesus Christ; not only by water, but by water and blood. And it is the Spirit who bears witness, because the Spirit is truth. 7 For there are three that bear witness in heaven: the Father, the Word, and the Holy Spirit; and these three are one. 8 And there are three that bear witness on earth: the Spirit, the water, and the blood; and these three agree as one. If we receive the witness of men, the witness of God is greater; for this is the witness of God which He has testified of His Son.
NASB: This is the One who came by water and blood, Jesus Christ; not with the water only, but with the water and with the blood. It is the Spirit who testifies, because the Spirit is the truth. For there are three that testify: the Spirit and the water and the blood; and the three are in agreement. If we receive the testimony of men, the testimony of God is greater; for the testimony of God is this, that He has testified concerning His Son.
NIV: This is the one who came by water and blood—Jesus Christ. He did not come by water only, but by water and blood. And it is the Spirit who testifies, because the Spirit is the truth. 7 For there are three that testify: 8 the Spirit, the water and the blood; and the three are in agreement. 9 We accept man’s testimony, but God’s testimony is greater because it is the testimony of God, which he has given about his Son.
KJV: Who is he that overcometh the world, but he that believeth that Jesus is the Son of God? 6 This is he that came by water and blood, even Jesus Christ; not by water only, but by water and blood. And it is the Spirit that beareth witness, because the Spirit is truth. 7 For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one. 8 And there are three that bear witness in earth, the spirit, and the water, and the blood: and these three agree in one. 9 If we receive the witness of men, the witness of God is greater: for this is the witness of God which he hath testified of his Son.
GNT: 5 τίς δέ ἐστιν ὁ νικῶν τὸν κόσμον εἰ μὴ ὁ πιστεύων ὅτι Ἰησοῦς ἐστιν ὁ υἱὸς τοῦ θεοῦ; 6 Οὗτός ἐστιν ὁ ἐλθὼν διʼ ὕδατος καὶ αἵματος, Ἰησοῦς Χριστός· οὐκ ἐν τῷ ὕδατι μόνον ἀλλʼ ἐν τῷ ὕδατι καὶ ἐν τῷ αἵματι· καὶ τὸ πνεῦμά ἐστιν τὸ μαρτυροῦν, ὅτι τὸ πνεῦμά ἐστιν ἡ ἀλήθεια. 7 ὅτι τρεῖς εἰσιν οἱ μαρτυροῦντες, 8 τὸ πνεῦμα καὶ τὸ ὕδωρ καὶ τὸ αἷμα, καὶ οἱ τρεῖς εἰς τὸ ἕν εἰσιν. 9 εἰ τὴν μαρτυρίαν τῶν ἀνθρώπων λαμβάνομεν, ἡ μαρτυρία τοῦ θεοῦ μείζων ἐστίν, ὅτι αὕτη ἐστὶν ἡ μαρτυρία τοῦ θεοῦ ὅτι μεμαρτύρηκεν περὶ τοῦ υἱοῦ αὐτοῦ.
Again, I have to say that they are all divinely inspired.
What issue do you have with these translations?