Inasmuch as God is loving, why should we be unjust and unkind? As God manifests loyalty and mercy, why should we show forth enmity and hatred? Surely the divine policy is more perfect than human plan and theory; for no matter how wise and sagacious man may become, he can never attain a policy that is superior to the policy of God.
Therefore, we must emulate the attitude of God, love all people, be just and kind to every human creature. We must consider all as the leaves, branches and fruit of one tree, children of one household; for all are the progeny of Adam. We are waves of one sea, grass of the same meadow, stars in the same heaven; and we find shelter in the universal divine Protector. If one be sick, he must be treated; the ignorant must be educated; the sleeping must be awakened; the dead must be quickened with life. These were principles of the teachings of Bahá’u’lláh.
`Abdu'l-Bahá: The Promulgation of Universal Peace