What was the First Church and How we have our chruch facing east and all?
Going to  church is like entering into a laboratory to confirm what you have already learned in the classroom and from the text. If we want to know about this we need to read the book of Exodus. Moses goes up Mount Sinai again to receive instructions for 40 days and nights (Ex. 24:18). 

It was like

The schematic drawing attempts to depict the sacred landscape of Genesis in simplified form.  The first land to arise from the waters became the Mountain of the Lord, where the Lord created Adam.  It is from this divine center that creation begins and extends out in all directions.  The Hebrew for east means “faceward or frontward”; thus, driving Adam from before his face is part of the continuing eastward movement.  Once a year on Yom Kippur, the Day of Atonement, Adam’s eastward expulsion from the Garden is reversed when the high priest travels west past the consuming fire of the sacrifice and the purifying water of the laver, through the veil woven with images of cherubim.  Thus, he returns to the original point of creation, where he pours out the atoning blood of the sacrifice, reestablishing the covenant relationship with God.

The Tabernacle was to be a place of meeting the Lord and speaking with Him – Exodus 29:42-46 “This shall be a continual burnt offering throughout your generations at the door [veil?] of the tabernacle of the congregation before the Lord:  where I will meet you, to speak there unto thee.  And there I will meet with the children of Israel, and the tabernacle shall be sanctified by my glory… And I will dwell among the children of Israel, and will be their God.  And they shall know that I am the Lord their God… that I may dwell among them: I am the Lord their God.”