"Who knows the good he ought to do and doesn't do it, sins." James 4 verse 17
When you can do good, do it because you obey the Gospel thanks to this kind of behaviour.
You can honor God in your life when you do good.
People may have a bad look about you if you help those who are not kind to you, those who are evil against you.But, keep strong because "if you suffer for doing good and you endure it, this is commendable before God." 1 Peter 2 verse 20
Let discernment in Jesus be your share because even if you want to do something for someone , God could want someone else for doing it!!!