Note 16 at 1 Th. 5:17: There are two main ways that this verse is commonly interpreted. Probably the most common interpretation is that we are supposed to pray constantly. It is understood that we cannot physically be praying every single minute of every day. So, an attitude of prayer, where we are constantly in communion with the Lord, is stressed. This is certainly something to be advocated and followed.

But it seems more reasonable that this verse is teaching that we should not cease praying until we see the manifestation of what we have believed. In other words, once we believe the Lord for something in prayer, don't let go of that prayer until we have the answer.

Either interpretation is scriptural, i.e. in line with what the Bible teaches. But this one verse is not teaching two different things.