on the side of the angels

better angels

Morally upright or otherwise positive attributes of human character.

bright side

A consoling aspect of a difficult situation.

count angels on pinheads

To focus on obtaining the correct details of something which are largely irrelevant or unimportant.

enough to make the angels weep

Something so distressing that it causes one to lose hope and faith.

err on the side of

To behave in a manner which favours or which is biased toward.

err on the side of caution

To act in the least risky manner in a situation in which one is uncertain about the consequences.

get out of bed on the wrong side

To start the day in a bad mood for no apparent reason.

get up on the wrong side of the bed

To feel irritable; to be in a bad mood; to have a bad day from the start, for no particular reason.