White House chief of staff John Kelly sought to tamp down concerns among his colleagues by telling them there are no more staff changes on the horizon.

How does this man know this? I am going to presume — at my own risk, of course — that Donald J. Trump has told him so.

Kelly then relayed what might be assurances from the president that everyone in the White House can settle down now. Relax. Go about doing their jobs. No worries about their futures or their bosses’ futures.

Except for this: How does anyone trust a single word, let alone sentence, that flies out of Donald Trump’s mouth?

Trump has demonstrated a penchant for unpredictability. Doesn’t he brag about it, along with his sexual prowess and how smart he is? Doesn’t he say that unpredictability enhances his effectiveness as president of the United States?

So, with all that established, does it make any sense at all to take a single thing this guy says? How does one take his utterances at face value? How does one trust someone who lies with absolutely no concern over its consequences?

It might be that Kelly is trying to put as positive a face as he can on the chaos that has erupted yet again inside the West Wing. Secretary of State Rex Tillerson’s firing came without warning to Tillerson — or anyone else, for that matter. Trump told Tillerson the way he told the rest of the world: via Twitter. Classy, yes? Umm. No!

So now we hear from the White House chief of staff that there are no more firings upcoming.

Let’s all wait until, oh, the sun comes up in the morning.

Tomorrow’s a new day. A new set of crises awaits a stir-crazy nation. That’s how the president likes to operate. Or so he says.