Cleave unto righteousness

O people of God! Do not busy yourselves in your own concerns; let your thoughts be fixed upon that which will rehabilitate the fortunes of mankind and sanctify the hearts and souls of men.
This can best be achieved through pure and holy deeds, through a virtuous life and a goodly behaviour. Valiant acts will ensure the triumph of this Cause, and a saintly character will reinforce its power.
Cleave unto righteousness, O people of Bahá! This, verily, is the commandment which this Wronged One hath given unto you, and the first choice of His unrestrained Will for every one of you.

Bahá’u’lláh