Colossians 4:6 Let your speech [be] alway with grace, seasoned with salt, that ye may know how ye ought to answer every man.
2 Timothy 2:24-26 And a servant of the Lord must not quarrel but be gentle to all, able to teach, patient, in humility correcting those who are in opposition, if God perhaps will grant them repentance, so that they may know the truth, and that they may come to their senses and escape the snare of the devil, having been taken captive by him to do his will.
We are all at different points in our walk with God. Showing someone the same Grace that God has shown to us, as none is perfect or without a fault, is a blessing. Romans 3:23 for all have sin and fall short of the glory of God.
Galatians 6:6 As we have therefore opportunity, let us do good unto all men, especially unto them who are of the household of faith.
Romans 15:1 We who are strong must be considerate of those who are sensitive about things like this. We must not just please ourselves. We should help others do what is right and build them up in the Lord.