Interesting scene where Spacey plays out the conflict between a general message of love in the New Test. and the wrath of the older version. This scene suggests that any piety on his end could just be feigned in order not to alienate his base (atheists in office not necessarily welcome in U.S.). Power is the theme in the series, and Weber's Protestant Ethic, of accumulating as much as possible for the glory of God, is evident here.
"Stand up for their Christian faith" is the most important aspect of this statement. The most dominant religious beliefs in America are Christian in nature, so these comments don't make sense until we consider WHY some Christians would feel as if they need to 'stand up' for their faith. As secularization progresses in this society, this shift will be seen by some as a threat to their beliefs, rather than an attempt to co-exist or something similar.
2:40 to 3:40 is the relevant part here. In discussing Native Americans being robbed of their lands, the older lady replies that they've "gained access to heaven" as a substitute. Religion has been a rationalization for colonialism throughout history, and this is apparent in the "taming" of the West where a preacher refers to N.A.'s as "savages" to be tamed rather than "innocents" to be saved.