Matthew 5:2-12
He opened His mouth and taught them, saying,
Matthew 7:28-29
And so it happened when Jesus had finished [speaking] these words, the crowds were amazed at his teaching,
Matthew 13:35
[This was] so that what was spoken by the prophet would be fulfilled, when he said [Psa. 78:2], "I will open my mouth [to speak] with parables. I will say things that have been hidden from the beginning of time."
1 Corinthians 2:6-7
However, we speak [divine] wisdom among people who are [spiritually] mature, yet it is not a wisdom of this current age, nor of [its] current rulers, who are coming to nothing.
Colossians 1:26
[This message is] the secret which has been kept hidden throughout the ages and generations, but has now been revealed to God's saints [i.e., His holy people].