Ponder over these blessed verses:
Say (O Muhammad SAW): "Who provides for you from the sky and from the earth? Or who owns hearing and sight? And who brings out the living from the dead and brings out the dead from the living? And who disposes the affairs?" They will say: "Allâh." Say: "Will you not then be afraid of Allâh's Punishment (for setting up rivals in worship with Allâh)?" (Quran 10:31)
Surely, the religion (i.e. the worship and the obedience) is for Allâh only. And those who take Auliyâ' (protectors and helpers) besides Him (say): "We worship them only that they may bring us near to Allâh." Verily, Allâh will judge between them concerning that wherein they differ. Truly, Allâh guides not him who is a liar, and a disbeliever. (Quran 39:3)
And they worship besides Allâh things that hurt them not, nor profit them, and they say: "These are our intercessors with Allâh." Say: "Do you inform Allâh of that which He knows not in the heavens and on the earth?" Glorified and Exalted be He above all that which they associate as partners with Him! (Quran 10:18)
Nor would he order you to take angels and Prophets for lords (gods). Would he order you to disbelieve after you have submitted to Allâh's Will? (Tafsir At-Tabarî). (Quran 3:80)
"And (remember) when Allâh will say (on the Day of Resurrection): "O 'Iesa (Jesus), son of Maryam (Mary)! Did you say unto men: 'Worship me and my mother as two gods besides Allâh?' " He will say: "Glory be to You! It was not for me to say what I had no right (to say). Had I said such a thing, You would surely have known it. You know what is in my innerself though I do not know what is in Yours, truly, You, only You, are the AllKnower of all that is hidden and unseen.
"Never did I say to them aught except what You (Allâh) did command me to say: 'Worship Allâh, my Lord and your Lord.' And I was a witness over them while I dwelt amongst them, but when You took me up, You were the Watcher over them, and You are a Witness to all things. (This is a great admonition and warning to the Christians of the whole world).
If You punish them, they are Your slaves, and if You forgive them, verily You, only You are the AllMighty, the AllWise." [Qur'aan 5:116-118].
Those whom they call upon desire (for themselves) means of access to their Lord (Allâh), as to which of them should be the nearest and they hope for His Mercy and fear His Torment. Verily, the Torment of your Lord is something to be afraid of! [Quran 17:57]