Love can be tough against the hardened promoters of false religion who stubbornly reject the truth:
In your face "Hypocrites!" "Serpents, Brood of Vipers" and "Beasts"
Mt 23:29 "Woe to you, scribes and Pharisees, HYPOCRITES! Because you build the tombs of the prophets and adorn the monuments of the righteous,
Mt 23:33 "SERPENTS, BROOD OF VIPERS! How can you escape the condemnation of hell?
1Co 15:32 If, in the manner of men, I have fought with BEASTS at Ephesus, what advantage is it to me?...
It is gentle to all who are ignorant of the truth:
2Ti 2:24 And a servant of the Lord must not quarrel but be gentle to all, able to teach, patient,
25 in humility correcting those who are in opposition, if God perhaps will grant them repentance, SO THAT THEY MAY KNOW THE TRUTH...