'Suppose' in the Bible

I suppose therefore that this is good for the present distress, I say, that it is good for a man so to be.

For if someone sees you, a person having knowledge, eating in an idol’s temple, then if he is weak, will he not be encouraged to eat things sacrificed to idols [and violate his own convictions]?

There are, I suppose, many different languages in the world, yet none of them is without meaning.