A private analysis by a Colombian – April, 2011
When the rest of South America recognized Palestine, Colombia did not in 2011.
On the vote to admit Palestine to an observer status in 2012, Colombia abstained.
So Colombia while not being outstandingly pro-Israel, is on the record as not being Pro-Palestine.
There are at least 700,000 Lebanese in Colombia. I estimate probably an equal number of Orthodox Christians from Syria as well.
But again, remember that Lebanese Christians would often be Maronites, and hostile to Islamic agendas. They may have had no bearing on the matter at the UN, though; but it does mean that Lebanese Arab-Chrstians would not probably be actively pro-Palestine.