How can I recover deleted text messages back on my iPhone?

I accidentally deleted messages that are important to me from my iPhone last night, that I want back on my phone. I have iCloud enabled, for sure, as I just realized the messages are still on my MacBook Air, including the ones that I accidentally deleted from my iPhone, and new messages that I've both sent and received today on my iPhone are showing up on my MacBook Air, so I really don't understand why the accidentally deleted messages are still on my laptop, but nonetheless here is my question. How I get the messages from my MacBook Air, back to my iPhone? I have a "sync now" option on my iPhone, but I'm afraid it I click that, that my MacBook Air will match my iPhone, when I want my iPhone to instead match my MacBook Air. Any help from someone who has dealt with this or an expert would be much appreciated! TIA!

[Re-Titled by Moderator]

Original Title: Deleted Text Messages by Accident