Romans 12:17 If someone has done you wrong, do not repay him with a wrong. Try to do what everyone considers to be good. -GNT
We’re called to be good and loving to everyone. We’re not told to even to “Teach people a lesson that their evil is wrong”, we’re supposed to be good and loving to everyone.
If we try and be good and loving without Jesus, you put your eternal destination up for chance! God is merciful and there is a chance people who didn’t follow Jesus in this life, but promise to follow Jesus in the next life may be saved, but this is theologically uncertain. We’re not sure what happens with people who don’t accept Jesus in this life, but it can be really really bad. So just accept Jesus and be good and loving in this life. Even if you only have a small faith in Jesus, you are saved. And you can grow by reading the Bible daily and praying often.
People have said,”Well since I’m saved from every sin, I can go on sinning all I want and I’ll be saved.” And that position is dangerous too because Jesus wants us to repent from sins. Yes every sin we do from birth to death is forgiven in Jesus. And yes, we sin after being saved, but we should be trying not to. And we should be evaluating our lives to remove sins we didn’t even know were sins until we really look at ourselves and scripture. It is important to try and be good and loving to all once we have Jesus.
Matthew 7: 12 “Do for others what you want them to do for you: this is the meaning of the Law of Moses and of the teachings of the prophets. 13 “Go in through the narrow gate, because the gate to hell is wide and the road that leads to it is easy, and there are many who travel it. 14 But the gate to life is narrow and the way that leads to it is hard, and there are few people who find it. 15 “Be on your guard against false prophets; they come to you looking like sheep on the outside, but on the inside they are really like wild wolves. 16 You will know them by what they do. Thorn bushes do not bear grapes, and briers do not bear figs. 17 A healthy tree bears good fruit, but a poor tree bears bad fruit. 18 A healthy tree cannot bear bad fruit, and a poor tree cannot bear good fruit. 19 And any tree that does not bear good fruit is cut down and thrown in the fire.
Bearing fruit is a spiritual metaphor for being spiritually positive towards others and helpful. Being good and loving to others helps them out. And if you see someone being good and loving, you see they bear good fruit.