My concern is that many an ignorant character uses this verse and others like it, to inflict beatings on children and innocents. Taking it out of context and as the excuse they want. Over the course of history we know this is true.
So what is the context? It seems to be a stand-alone statement.
I personally do not believe in physical violence of any kind, ever.
First off, ignorant and bullish abusers will always find ways to rationalize their behaviors. Only when Christ comes back to rule and reign will we be free of perverts and tyrants completely.
For now, lets pray for one another and all the children to be under God's tender care and protection.
You are correct about that verse (Proverbs 20:30). It is a stand-alone contextually and carries no ill connotation in the tried-and-true KJV.
Proverbs 20:30 with "context"...
22Say not thou, I will recompense evil; but wait on the LORD, and he shall save thee.
23Divers weights are an abomination unto the LORD; and a false balance is not good.
24Man's goings are of the LORD; how can a man then understand his own way?
25It is a snare to the man who devoureth that which is holy, and after vows to make enquiry.
26A wise king scattereth the wicked, and bringeth the wheel over them.
27The spirit of man is the candle of the LORD, searching all the inward parts of the belly.
28Mercy and truth preserve the king: and his throne is upholden by mercy.
29The glory of young men is their strength: and the beauty of old men is the gray head.
30The blueness of a wound cleanseth away evil: so do stripes the inward parts of the belly.
Men who want to misuse the Bible will always select verses like 26 and exclude everything else (like 22).
I encourage you to pick up a copy of the KJV. Many odd and twisted things have crept into those new "modern" versions. They are not easier to read. Their sole purpose is to further the agenda of their creators (which is usually to make lots of money.)