Baha’u’llah quotes passage from the Qur’an concerning the “Divine Presence” and explains its meaning

Ponder a while upon the verses concerning the Divine Presence, which have been sent down in the Qur’án by Him Who is the Lord of the kingdom of names, perchance thou mayest discover the Straight Path, and be made an instrument for the guidance of His creatures. Such a one as thou must needs in this day arise to serve this Cause. The abasement of this Wronged One as well as thy glory shall both pass away. Strive thou, that haply thou mayest achieve a deed the fragrance of which shall never fade from the earth.

Concerning the Divine Presence there hath been sent down what no denier hath been or is now able to refute or repudiate.

• He—blessed and exalted be He—saith: “It is God Who hath reared the heavens without pillars thou canst behold; then mounted His throne, and imposed laws on the sun and moon: each traveleth to its appointed goal. He ordereth all things. He maketh His signs clear, that ye may have firm faith in the Presence of your Lord.”
• He also saith: “To him who hopeth to attain the Presence of God, the set time of God will surely come. And He is the Hearer, the Knower.”
• And further He—exalted be He—saith: “As for those who believe not in the signs of God, or that they shall ever attain His Presence, these of My mercy shall despair, and these doth a grievous chastisement await.”
• And likewise He saith: “And they say, ‘What! when we shall have lain hidden in the earth, shall we become a new creation?’ Yea, they deny that they shall attain the Presence of their Lord.”
• And likewise He saith: “They truly doubt the Presence of their Lord. He, verily, overshadoweth all things.”
• And likewise He saith: “Verily, they who hope not to attain Our Presence, and find their satisfaction in this world’s life, and rest on it, and who of Our signs are heedless—these! their abode the fire, in recompense of their deeds!”
• And likewise He saith: “But when Our clear signs are recited to them, they who look not forward to attain Our Presence, say, ‘Bring a different Qur’án from this, or make some change in it.’ Say: It is not for Me to change it as Mine own soul prompteth. I follow only what is revealed to Me: verily, I fear, if I rebel against My Lord, the punishment of a great day.”
• And likewise He saith: “Then gave We the Book to Moses—complete for Him who should do right, and a decision for all matters, and a guidance, and a mercy, that they might believe in the Presence of their Lord.”
• And likewise he saith: “They are those who believe not in the signs of the Lord, or that they shall ever attain His Presence. Vain, therefore, are their works; and no weight will We allow them on the Day of Resurrection. This shall be their reward—Hell. Because they were unbelievers, and treated My signs and My Apostles with scorn.”
• And likewise He saith: “Hath the history of Moses reached thee? When He saw a fire, and said to His family, ‘Tarry ye here, for I perceive a fire; haply I may bring you a brand from it, or find at the fire a guide.’ And when He came to it, He was called to, ‘O Moses! Verily, I am Thy Lord; therefore pull off Thy shoes, for Thou art in the holy vale of Towa. And I have chosen Thee; hearken then to what shall be revealed. Verily, I am God, there is no God but Me. Therefore, worship Me.’”
• And likewise He saith: “Have they not considered within themselves that God hath not created the heavens and the earth and all that is between them but for a serious end, and for a fixed term? But truly most men believe not that they shall attain the Presence of their Lord.”
• And likewise He saith: “What! Have they no thought that they shall be raised again for the Great Day, the Day when mankind shall stand before the Lord of the worlds?”
• And likewise He saith: “We heretofore gave the Book to Moses. Have thou no doubt as to His attaining Our Presence.” And He saith: “Aye! But when the earth shall be crushed with crushing, crushing, and thy Lord shall come and the angels rank on rank.”
• And likewise He saith: “Fain would they put out the light of God with their mouths! But though the infidels hate it, God will perfect His light.”
• And likewise He saith: “And when Moses had fulfilled the term, and was journeying with His family, He perceived a fire on the mountain side. He said to His family: ‘Wait ye, for I perceive a fire, haply I may bring you tidings from it, or a brand from the fire to warm you.’ And when He came up to it, a Voice cried to Him out of the Bush from the right side of the Vale in the sacred Spot: ‘O Moses, I truly am God, the Lord of the worlds!’” 

In all the Divine Books the promise of the Divine Presence hath been explicitly recorded. By this Presence is meant the Presence of Him Who is the Dayspring of the signs, and the Dawning-Place of the clear tokens, and the Manifestation of the Excellent Names, and the Source of the attributes, of the true God, exalted be His glory. God in His Essence and in His own Self hath ever been unseen, inaccessible, and unknowable. By Presence, therefore, is meant the Presence of the One Who is His Vicegerent amongst men. He, moreover, hath never had, nor hath He, any peer or likeness. For were He to have any peer or likeness, how could it then be demonstrated that His being is exalted above, and His essence sanctified from, all comparison and likeness? 

- Baha’u’llah  (‘Epistle to the Son of the Wolf’)