Who said Jesus was an itinerant carpenter? As the eldest son, he probably took care of his mother at their family shop. The shop was probably taken over by another family member when Jesus began his ministry.
The Bible doesn’t spell it out, but it seems likely given the circumstances and some “sanctified imagination.” Once he began to move around and preach, he had to get his income from something, and they didn’t have a Bank of Galilee with ATM cards for the home shop to keep him funded at that time. Paul, following in the footsteps of his Master, made tents for a living as he went about, so perhaps Jesus also kept himself up honorably doing the thing that he did best. (And if he had no hammer handy, you’d see something that looked like kung fu driving the nails in with karate chops... I don’t know whether I’m kidding or not.) Being God he could of course also do all sorts of things like muster up a fish with a denarius any time he wanted. Much is not known to us moderns. But
That last But shouldn’t be there... except perhaps
But God, who was rich in mercy, made us alive together with Christ Jesus...
I mean, at least during the phase where he had left the home shop and wasn’t yet living on some share of whatever the disciples got, minus what Judas filched from that purse of course. How the purse was filled isn’t specified in the bible and it could have been a combination of donations and odd jobs.