The simple answer to this question is…..YES! you can.  Obeying Gods laws is what determines if you belong to Jesus Christ. Not being able to quote Scripture or belong to a certian religion or Church. Since the Kingdom of heaven is within you, how to get there should be “built in” and it is. Just come out of the world and get into Gods truth.

You can read the following passage in Romans 2:14

Even Gentiles, who do not have God’s written law, show that they know his law when they instinctively obey it, even without having heard it. They demonstrate that God’s law is written in their hearts, for their own conscience and thoughts either accuse them or tell them they are doing right. And this is the message I proclaim—that the day is coming when God, through Christ Jesus, will judge everyone’s secret life.

I felt this passage from Romans illustrates once again that God is within all of us, but we must seek Him and obey Him.