John Chrysostom
Again the Apostle uproots bitterness. Again he cuts off the occasion for anger. What, indeed, does he say? "See that you walk carefully."
He knew his Teacher, who, when sending His disciples as sheep among wolves, also commanded them to be like doves. "Be simple," He says, "as doves" (Mt 10:16).
Since Christians were among wolves, and since they had been instructed not to avenge themselves but to endure wrongs, they needed such instruction. What had already been said was enough to make them more courageous.
But when an addition is made to two things, understand that the instruction has become abundant. See, then, with what care he warns them, saying, "See that you walk carefully."
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Whole cities waged war against them, the Apostles. This war passed even into households. Father was armed against son, son against father, mother against daughter, daughter against mother.
Why did these divisions arise? They had heard Christ say, "He who loves father or mother more than Me is not worthy of Me" (Mt 10:37).
Therefore, lest they think that He was introducing wars and strife in vain, since great enmity could arise if they themselves chose to take up arms, the Apostle says, "See that you walk carefully."
That is, apart from the preaching, give no other occasion for enmity against yourselves. Let the preaching alone be the ground of hostility. Let no one accuse you of anything else.
Show honor and every obedience, provided that nothing harms the preaching and nothing hinders piety. For it is said, "Render therefore to all their due: taxes to whom taxes are due, customs to whom customs, fear to whom fear, honor to whom honor" (Rom 13:7).
When they see you obedient to others, they themselves will be ashamed.