Romans 11:25 Οὐ γὰρ θέλω ὑμᾶς ἀγνοεῖν, ἀδελφοί, τὸ μυστήριον τοῦτο, ἵνα μὴ ἦτε ἐν / παρ' ἑαυτοῖς φρόνιμοι, ὅτι πώρωσις ἀπὸ μέρους τῷ Ἰσραὴλ γέγονεν ἄχρις οὗ τὸ πλήρωμα τῶν ἐθνῶν εἰσέλθῃ
For I don't desire you to be ignorant, brothers, of this mystery, so that you won't be wise in your own conceits, that a partial hardening has happened to Israel, until the fullness of the Gentiles has come in,
Noun: Accusative Singular Neuter

1 Corinthians 2:1 Κἀγὼ ἐλθὼν πρὸς ὑμᾶς ἀδελφοί, ἦλθον οὐ καθ' ὑπεροχὴν λόγου ἢ σοφίας καταγγέλλων ὑμῖν τὸ μυστήριον τοῦ θεοῦ.
When I came to you, brothers, I didn't come with excellence of speech or of wisdom, proclaiming to you the testimony of God.
Noun: Accusative Singular Neuter

1 Corinthians 15:51 ἰδοὺ μυστήριον ὑμῖν λέγω· πάντες οὐ κοιμηθησόμεθα, πάντες δὲ ἀλλαγησόμεθα,
Behold, I tell you a mystery. We will not all sleep, but we will all be changed,
Noun: Accusative Singular Neuter

Ephesians 1:9 γνωρίσας ἡμῖν τὸ μυστήριον τοῦ θελήματος αὐτοῦ κατὰ τὴν εὐδοκίαν αὐτοῦ ἣν προέθετο ἐν αὐτῷ
making known to us the mystery of his will, according to his good pleasure which he purposed in him
Noun: Accusative Singular Neuter

Ephesians 3:3 ὅτι κατὰ ἀποκάλυψιν ἐγνωρίσθη μοι τὸ μυστήριον, καθὼς προέγραψα ἐν ὀλίγῳ,
how that by revelation the mystery was made known to me, as I wrote before in few words,
Noun: Nominative Singular Neuter

Ephesians 5:32 τὸ μυστήριον τοῦτο μέγα ἐστίν· ἐγὼ δὲ λέγω εἰς Χριστὸν καὶ εἰς τὴν ἐκκλησίαν.
This mystery is great, but I speak concerning Christ and of the assembly.
Noun: Nominative Singular Neuter

Ephesians 6:19 καὶ ὑπὲρ ἐμοῦ, ἵνα μοι δοθῇ λόγος ἐν ἀνοίξει τοῦ στόματός μου, ἐν παρρησίᾳ γνωρίσαι τὸ μυστήριον τοῦ εὐαγγελίου,
on my behalf, that utterance may be given to me in opening my mouth, to make known with boldness the mystery of the Good News,
Noun: Accusative Singular Neuter

Colossians 1:26 τὸ μυστήριον τὸ ἀποκεκρυμμένον ἀπὸ τῶν αἰώνων καὶ ἀπὸ τῶν γενεῶν— νῦν δὲ ἐφανερώθη τοῖς ἁγίοις αὐτοῦ,
the mystery which has been hidden for ages and generations. But now it has been revealed to his saints,
Noun: Accusative Singular Neuter

Colossians 4:3 προσευχόμενοι ἅμα καὶ περὶ ἡμῶν ἵνα ὁ θεὸς ἀνοίξῃ ἡμῖν θύραν τοῦ λόγου λαλῆσαι τὸ μυστήριον τοῦ Χριστοῦ, δι' ὃ καὶ δέδεμαι,
praying together for us also, that God may open to us a door for the word, to speak the mystery of Christ, for which I am also in bonds;
Noun: Accusative Singular Neuter

2 Thessalonians 2:7 τὸ γὰρ μυστήριον ἤδη ἐνεργεῖται τῆς ἀνομίας· μόνον ὁ κατέχων ἄρτι ἕως ἐκ μέσου γένηται.
For the mystery of lawlessness already works. Only there is one who restrains now, until he is taken out of the way.
Noun: Nominative Singular Neuter

1 Timothy 3:9 ἔχοντας τὸ μυστήριον τῆς πίστεως ἐν καθαρᾷ συνειδήσει.
holding the mystery of the faith in a pure conscience.
Noun: Accusative Singular Neuter

1 Timothy 3:16 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.
Without controversy, the mystery of godliness is great: God was revealed in the flesh, justified in the spirit, seen by angels, preached among the nations, believed on in the world, and received up in glory.
Noun: Nominative Singular Neuter

Revelation 1:20 τὸ μυστήριον τῶν ἑπτὰ ἀστέρων οὓς εἶδες ἐπὶ τῆς δεξιᾶς μου καὶ τὰς ἑπτὰ λυχνίας τὰς χρυσᾶς· οἱ ἑπτὰ ἀστέρες ἄγγελοι τῶν ἑπτὰ ἐκκλησιῶν εἰσιν καὶ αἱ λυχνίαι αἱ ἑπτὰ ἑπτὰ ἐκκλησίαι εἰσίν.
the mystery of the seven stars which you saw in my right hand, and the seven golden lampstands. The seven stars are the angels of the seven assemblies. The seven lampstands are seven assemblies.
Noun: Nominative Singular Neuter

Revelation 10:7 ἀλλ' ἐν ταῖς ἡμέραις τῆς φωνῆς τοῦ ἑβδόμου ἀγγέλου, ὅταν μέλλῃ σαλπίζειν, καὶ ἐτελέσθη τὸ μυστήριον τοῦ θεοῦ ὡς εὐηγγέλισεν τοὺς ἑαυτοῦ δούλους τοὺς προφήτας.
but in the days of the voice of the seventh angel, when he is about to sound, then the mystery of God is finished, as he declared to his servants, the prophets.
Noun: Nominative Singular Neuter

Revelation 17:5 καὶ ἐπὶ τὸ μέτωπον αὐτῆς ὄνομα γεγραμμένον, μυστήριον. Βαβυλὼν ἡ μεγάλη, ἡ μήτηρ τῶν πορνῶν καὶ τῶν βδελυγμάτων τῆς γῆς.
And on her forehead a name was written, "MYSTERY, BABYLON THE GREAT, THE MOTHER OF THE PROSTITUTES AND OF THE ABOMINATIONS OF THE EARTH."
Noun: Nominative Singular Neuter

Revelation 17:7 καὶ εἶπέν μοι ὁ ἄγγελος, διὰ τί ἐθαύμασας; ἐγὼ ἐρῶ σοι τὸ μυστήριον τῆς γυναικὸς καὶ τοῦ θηρίου τοῦ βαστάζοντος αὐτήν τοῦ ἔχοντος τὰς ἑπτὰ κεφαλὰς καὶ τὰ δέκα κέρατα.
The angel said to me, "Why do you wonder? I will tell you the mystery of the woman, and of the beast that carries her, which has the seven heads and the ten horns.
Noun: Accusative Singular Neuter