In Exodus 3:12, God promises His presence with Moses; in 4:12, that presence is specifically applied to his mouth.

Isaiah 50:4 says God gave him 'the tongue of those who are taught,' mirroring God's promise to teach Moses what to say.

Jeremiah 1:9 records God touching Jeremiah's mouth and putting words in it — an almost identical commissioning to Moses.

Matthew 10:19 promises that when persecuted, the Spirit will give you what to say — same divine provision for speech as to Moses.

Matthew 10:20 clarifies it is the Spirit speaking through you, directly echoing God's promise to be with Moses' mouth.

Mark 13:11 assures the Holy Spirit will speak through believers in trial, just as God promised to teach Moses.

In Luke 12:12, the Holy Spirit teaching believers what to say parallels God's promise to teach Moses' mouth.

In Luke 21:15, Jesus promises to give a mouth and wisdom, directly echoing God's promise to teach Moses what to say.

In John 14:26, the Holy Spirit teaches all things, mirroring God's promise to teach Moses — now applied to all believers.

In Ephesians 6:19, Paul asks for words to be given him to speak boldly, echoing God's promise to supply Moses' speech.

Proverbs 16:1 echoes the same truth — the tongue's answer is from the LORD, just as God promises to teach Moses what to speak.

In Jeremiah 15:19, God tells Jeremiah that if he utters what is precious, he shall be as God's mouth — a direct parallel to Moses being taught what to speak.

Ezekiel 3:27 parallels God opening the prophet's mouth to speak God's words, just as He promises Moses to teach him what to say.

Acts 6:10 shows Stephen speaking with wisdom the Spirit gives — a specific instance of God being with someone's mouth as promised to Moses.

Psalm 25:4 prays for God to teach His ways — mirroring God's promise in Exodus 4:12 to teach Moses what to say.

Acts 2:4 shows the Spirit enabling speech (tongues) — a direct fulfillment of God being with the mouth, though in a different manner.