When I hear that expression keeping up with Jehovah's chariot it makes me angry because phrases like that are all about go faster, faster, you are falling behind. How could anyone on foot keep up with a chariot unless they ran like hell?
So many of these kind of phrases are designed to make people feel they are too slow, not doing enough. Do you remember that kingdom song that had the phrase 'quicken the pace' in it and other phrases about doing more and doing it faster. Can't remember which one it was now. Words set to music are even more dangerous because they go straight into the unconscious mind.
Is it any wonder these people are burnt out, exhausted and constantly ill?