74 The construction has the בְּ (bet) preposition with the Hitpael infinitive construct, forming a temporal clause. This clause explains the way in which the person has acted foolishly.
75 Heb “hand to mouth.” This express means “put your hand to your mouth” (e.g., Job 40:4, 5); cf. “clap your hand over.”
76 This line provides the explanation for the instruction to keep silent in the previous verse. It uses two images to make the point, and in so doing repeats two words throughout. The first is the word מִיץ (mits), which is translated (in sequence) “churning,” “punching,” and “stirring up.” The form is a noun, and 568 suggests translating it as “squeezing” in all three places, even in the last where it describes the pressure or the insistence on strife. This noun occurs only here. The second repeated word, the verb יוֹצִיא (yotsir), also occurs three times; it is the Hiphil imperfect, meaning “produces” (i.e., causes to go out).
77 There is a subtle wordplay here with the word for anger: It is related to the word for nose in the preceding colon.
78 The analogy indicates that continuously pressing certain things will yield results, some good, some bad. So pressing anger produces strife. The proverb advises people to strive for peace and harmony through humility and righteousness. To do that will require “letting up” on anger.

In other versions

If you have been foolish, exalting yourself,

or if you have been devising evil,

put your hand on your mouth.

For pressing milk produces curds,

pressing the nose produces blood,

and pressing anger produces strife.

“If you play the fool and exalt yourself,

or if you plan evil,

clap your hand over your mouth!

For as churning cream produces butter,

and as twisting the nose produces blood,

so stirring up anger produces strife.”

If you have been foolish by exalting yourself

or if you’ve been scheming,

put your hand over your mouth.

For the churning of milk produces butter,

and twisting a nose draws blood,

and stirring up anger produces strife.

If you have been a fool by being proud or plotting evil,

cover your mouth in shame.

As the beating of cream yields butter

and striking the nose causes bleeding,

so stirring up anger causes quarrels.

If you have been foolish by exalting yourself,

and if you have devised evil, put your hand to your mouth.

For pressing milk produces curd,

and pressing the nose produces blood,

so pressing anger produces strife.

If thou hast done foolishly in lifting up thyself,

Or if thou hast thought evil,

Lay thine hand upon thy mouth.

Surely the churning of milk bringeth forth butter,

And the wringing of the nose bringeth forth blood:

So the forcing of wrath bringeth forth strife.

Public Domain