"Think not that I am come to send peace", temporal peace and outward prosperity. they thought the Christ came to give all his followers wealth and power in the world. "no,"' says Christ, "I did not come with a view to give them peace; peace in heaven they may be sure of, but not peace on earth." Christ came to give us peace with God, peace in our consciences, peace with our brethren, but "in the world ye shall have tribulation".,
They mistake the design of the gospel, those who think their profession of it will secure them from, for it will expose them to trouble in this world. If all the world would receive Christ. there would then follow a universal peace, but while there are and will be so many that reject him (and those not only "the children of this world", but "the seed of the serpent" ), the children of God, that are called out of the world must expect to feel the fruits of their enmity.
Look not for peace, but a sword, Christ came to give the sword of the word, with which his disciples fight against the world, and conquering work this sword has made (Rev. 6:4; 19:21),
and "the sword of persecution", with which the world fights against the disciples, being cut to the heart with the sword of the word (Acts 7:54) and tormented by the testimony of Christ’s witnesses (Rev. 11:10) and cruel work this sword made. Christ sent that gospel, which gives occasion for the drawing of this sword, and so may be said to send this sword; he orders his church into a suffering state for the trial and praise of his people’s graces, and the filling up of the measure of their enemies’ sins.
Look not for peace, but division; I am come to set men at variance. This effect of the preaching of the gospel is not the fault of the gospel, but of those who do not receive it. When some believe the things that are spoken, and others believe them not, the faith of those that believe condemns those that believe not, and so, they have enmity against them that believe.
the most violent and implacable feuds have ever been those that have arisen from difference in religion; no enmity like that of the persecutors, no resolution like that of the persecuted. Thus Christ tells his disciples what they should suffer and these were hard sayings. if they could bear these, they could bear any thing.
"a man against his father, a daughter against her mother, a daughter-in-law against her mother-in-law--a man's enemies will be the members of his own household."
They are here told from whom, and by whom, they should suffer these hard things.