You are playing as Edward Carnby, correct?
You need to input the three correct emblems to progress. You can find them yourself by combining your Blue Lens with your torchlight and searching for the blood symbols, (one on the church's door, and two outside while following the blood trail).
If you want me to save you the trouble, here are the three correct emblems to input:
Press Emblem 3 (the emblem furthest to your right on the top row of the panel)
Then Press Emblem 5 (in the middle of the second row)
Then press Emblem 9 (furthest right on the bottom row)

After inputting these, the altar will move and reveal some stairs. Go down, and when you reach a turnstile, use the seal you got from Aline to turn it. Go straight, and you will see another panel which requires another seal, leave this for now and just continue on to reach the Laboratory. Enter.

Hope this helps, Good luck...