Objective reality is reality that exists independently of the observer. God's existence is objective and does not need the verification of the observer in order to be true. We can verify His existence and substantiate His reality through proofs, as St. Thomas Aquinas and many other theologians have done admirably. Here is St. Thomas on "Whether God exists?":
http://www.newadvent.org/summa/100203.htm
If God does exist, then we are entirely dependent on Him and must recognize that dependence through honoring and worshipping Him. This honor and worship is the virtue of religion, which must be practiced in accordance to His Will, known to us through His Revelation. To know Revelation is to understand the truths He wishes us to possess and the moral virtues He calls us to practice. In the end, He will judge us according to our belief in Him and the practice of these moral virtues so that we might either merit eternal pleasure with Him, our greatest good, in Heaven or be separated from Him forever through eternal reprobation.
While I believe that God exists...Aquinas' and others views, are still theories, they do not verify the existence of God.
I do not agree that we must recognise our dependence of Him through religious worship.