The Bible says servants (i.e. slaves, but probably applies to colonists too) should obey their masters unquestioningly, even if they are tyrants:
Quote Originally Posted by 1 Peter 2:18
Servants, be subject to your masters with all fear; not only to the good and gentle, but also to the froward.
Quote Originally Posted by Ephesians 6:5
Servants, be obedient to them that are your masters according to the flesh, with fear and trembling, in singleness of your heart, as unto Christ