Passage
He opened his mouth and taught them, saying,
He opened his mouth and taught them, saying,
Matthew 5:1 Seeing the multitudes, he went up onto the mountain. When he had sat down, his disciples came to him.
Matthew 5:2 He opened his mouth and taught them, saying,
Matthew 5:3 “Blessed are the poor in spirit, for theirs is the Kingdom of Heaven.Isaiah 57:15; 66:2
Matthew 5:4 Blessed are those who mourn, for they shall be comforted.Isaiah 61:2; 66:10,13
The verse centers on "opened", "mouth", "taught", and "saying". It is saying that the verse draws attention to "opened" and "mouth", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 1's "Seeing the multitudes he went up onto..." into verse 3's "Blessed are the poor in spirit for...", so "opened" and "mouth" belong inside that flow. In Matthew context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "opened" and "mouth" with trust shaped by these words, not by a vague optimism outside the passage.