There, but for the grace of God, go I.

This is a version of a comment by John Bradford when he saw some criminals led to execution.

But for the grace of God, there goes John Bradford.

John Bradford Appeasing the Riot at St. Paul’s Cross (Photo credit Wikipedia)

Reserving judgment means waiting to see what happens.

Don’t judge by appearances and
Don’t judge a book by its cover have similar meanings.

Look someone up and down and
Give someone the once-over both mean look at someone’s appearance in a critical manner as if heedless of the last two pieces of advice.

That’s rich coming from you!
The previous speaker has made a comment which contradicts their attitudes or condemns someone else for doing what they do themselves.

I don’t think much of that.
There is no problem judging ideas or artistic endeavours, for example.

It might do at a stretch.
This was my attitude to a small piece of material.

If need be…
…there is a back-up plan.  After all necessity is the mother of invention.

That cut you down to size.
Something was said which deflated your ego.

No-one is above the law.
I was brought up with this adage.  The Queen was often mentioned in the same breath!

Possession is nine tenths of the law.
Perhaps the other tenth is about how the property was obtained.

Laying the law down describes someone setting out rules or just ranting – on their hobby-horse.

There ought to be a law against it
is often said., meaning:
“It ought not to be allowed.”
There was a BBC children’s programme called Toytown, with Larry the Lamb, Dennis the Dachshund and other characters, including Mr Grouser, who always found something to complain about and used the above phrase.  I’m not sure that the word catchphrase had been invented then.

It’s not for me to pass judgment.
While this is a belief handed down in Christian cultures, the expression is often used as an excuse for not giving an opinion or as a preface to “but…”!

Romans 14 is part of St Paul’s explanation of why we should not judge one another.