The conventional wisdom is to “choose your battles” and it makes lots of sense. It’s a good application of 1Peter 4:8 “love covers a multitude of sins”. 

But choosing your battles can easily become and excuse for never entering into battles. 

The Lord’s servant should not quarrel, but should correct, rebuke and encourage. These all involve battles of some sort. 

So, as we choose our battles, we should also be aware of our own temptation to avoid entering battles at all. We are, after all, soliders dressed in the Lord’s armour.