There are many treasures the human existence holds. The top three are culture, family and young love. After Sarah passed away and properly buried it was decided that Issac find a wife. And that is where Aziraphale came in for Issac was in the genealogy for Jesus the son of God and Man who would be coming to take the sins of the world.
Abraham had sent out his servant to go seek out proper suitors in the land of the Canaanites. And he had to pick Rebekah for the prophecy to completed.
Aziraphale was crouched behind some bushes near the watering hole where Rebekah was. The servant approached they did the water test to test Rebekah if she was kind or not and she was picked. The plan went perfectly. Aziraphale sang a silent praise to the Almighty.
Then he felt a demon behind him.
"Whatcha doing Aziraphale?"
"Crawly could you not sneak up on me like that?"
"Sorry I saw you crouching in the bushes like a stalking weirdo and I just had to check it out. "
"Well if you must know the son of Abraham is getting married today to that wonderful and kind woman Rebekah."
"Oh. Well, that isn't very romantic is it?"
"Crawly this isn't about romance. It is about picking the right person to have Issac's children so-never mind..." Aziraphale didn't want to reveal too much about the Great Plan to Crawly. He was still a demon after all.
"Whatever you say, Angel. I am just saying the whole thing seems rather boring and I am going to go stir it up okay?"
"What! Crawly you can't do that!"
"Oh yeah, I can! I am a demon! It is what I do! Now, are you going to come watch the show or just crouch there watching people like a panther stalking its prey?"
Aziraphale groaned and watched Crawly transfigure into his snake form.
"No fair! I can't do that!"
"Try and keep up slowpoke!"
He then slithered off with an anxious Azirapahle following after him. He couldn't have Crawly mess this up. Not now as he knew the archangels would blame him.
Aziraphale was rather out of breath by the time they reached the place of the wedding.
"Flowers" he mumbled to himself. He slithered into the woods.
"Crawly would you please slow down?"
After about ten minutes of running around, they finally came to a bush of Lilac.
Crawly transfigured back to his human corporation.
"These are perfect!"
"What are they?"
"Aren't you a Principality who helped in the garden of Eden?"
"Yes but I don't remember every little flower."
"Well I did and I helped with the stars not even the plants and I still know what kind of flowers these are."
"You helped with the stars?"
Crawly realized he had revealed too much about his past and decided to change the subject to the flowers.
"Lilac! It is typically seen in a light violet shade, which represents the first pangs of love. This flower would be an excellent choice for young or new love with a partner which is what we have here. Oh and look! There is also a stronger magenta color available to symbolize a stronger type of love. Sends the message of "I remember the first time we met and how much I wanted to know you more."
"How lovely!"
With that, the two began to pick off the flowers and make a bouquet of sorts. Crawly was actually really good at this sort of thing and paid attention to every little detail. Aziraphale had to admit to himself it was impressive.
Once they were finished they headed to the edge of the woods and saw Issac nearby. He and Rebekah were flirting.
"Young love is one of my favorite things about humanity!"
"Oh really? I would think so since you are an angel and angels are literally love."
"Oh come now Crawly! It is meant as pure love, not romance!"
With that Crawly transfigured into a snake and had to slither really awkwardly over to the couple as to not mess up the bouquet. He placed it behind Issac and fled back to Aziraphale. The two watched the rather cute display.
"Now that is how you do romance angel!"
"Well that was-"
"You better not say nice! I only did this because marriage built upon romantic feelings rather than strong commitments tend to be more miserable meaning the children will grow up in a broken home and be turned more towards Satan's side than your side!"
His tone grew harsh and very defensive and Aziraphale decided not to press further. With that, they went their separate ways.
Shortly after Rebekah would have Jacob and Esau and Abraham would be greeted by Azreal and Death. We all know the story of how Jacob tricked Esau into selling his birth right to him for a bowl of soup.
Turns out faking your wife as your sister runs in the family as Issac would do the same thing in Abimelech.
Then Jacob would trick his father into giving him Esau's blessing and Jacob would flee to Laban to avoid his brother's wrath.
Humans were so stupid sometimes.