Blessed are the peacemakers: for they shall be called the children of God.
μακαριοι οι ειρηνοποιοι οτι αυτοι υιοι θεου κληθησονται
Matthew 5:9
The same idea in other traditions
Depart from evil, and do good; Seek peace, and pursue it.
Let us live happily then, not hating those who hate us! among men who hate us let us dwell free from hatred!
One who does not frighten anyone, and who is not afraid of anyone else - says Nanak, listen, mind: call him spiritually wise.
And the servants of (Allah) Most Gracious are those who walk on the earth in humility, and when the ignorant address them, they say, "Peace!";
The enlightened and liberated monk should control himself, whether he be in a village or a town, and he should preach to all the road of peace; Gautama, &c.
He through whom the world is not agitated, and who is not agitated by the world, who is free from joy and anger and fear and agitation, he too is dear to me.
Thou hast come to draw men to union with me, / Not to drive them far away from me. / So far as possible, engage not in dissevering; / 'The thing most repugnant to me is divorce.' …
The Master said, "The student of virtue has no contentions. If it be said he cannot avoid them, shall this be in archery? But he bows complaisantly to his competitors; thus he ascends the hall, descends, and exacts the forfeit of drinking. In his contention, he is still the Chun-tsze."
When the Tao prevails in the world, they send back their swift horses to (draw) the dung-carts. When the Tao is disregarded in the world, the war-horses breed in the border lands. There is no guilt greater than to sanction ambition; no calamity greater than to be discontented with one's lot; no fault greater than the wish to be getting. Therefore the sufficiency of contentment is an enduring and unchanging sufficiency.