One God

World Peace and Spiritual Advancement
Based on the Common Understanding of God and the Soul

 The Chief Rabbi of Israel, H.H. Yona Metzger has expanded the evolution of Jewish thought in the modern age

"Their respective Traditions (Christian, Jewish, Muslim and Hindu) teach that there is One Supreme Being who is the
Ultimate Reality, who has created this world in its blessed diversity and who has

communicated Divine ways of action for humanity, for different peoples in different times and places."

The general principles of the soul, creation, God and His manifestations are surprisingly similar in all spiritual traditions. Furthermore, full realization of God can be achieved by anyone regardless of his race, religion or nationality.

Jewish

`Elijah said, "I bring heaven and earth to bear witness that any human being, Jew or Gentile, man or woman, freeman or slave, according to his deeds,
  can become worthy of

Ruach HaKodesh, the Holy Spirit,

the transcendental experience."
[Tana DeBei Eliahu Rabba 9] [Bahir II: 94]

Christian 

The Bible teaches, "There is neither Jew nor Greek, there is neither bond nor free, there is neither male nor female: for ye are all one in Christ Jesus.

(Galatians 3:28)

Muslim

Surely those who believe, and those who are Jews, and
the Christians, and the Sabians, whoever believes in Allah
and the Last day and does good, they shall have their reward
from their Lord, and there is no fear for them,

nor shall they grieve.

 Koran. 2.62:

The name Allah comes from the Hebrew letter Alef,

our A, in the English alphabet.
This simple point contains enough information for every
Christian, Jew and Hindu to accept Allah as one of God's names.

Hindu

"The humble sage, by virtue of true knowledge, sees with
equal vision a learned and gentle Brahman, a cow, an
elephant, a dog and a dog-eater [outcast]."
[Bagavad Gita 5.18]