Will pray for favour for you both. Maybe the breakthrough will come by thinking outside the box? To get you through this patch until he gets the job he is trained for, maybe something radically different will come along? In our very rural village, there's an optician working as a post deliverer, three medical doctors unemployed (yes, really), I know of a bank manager who got made redundant and hasn't worked since. When I got sick and couldn't put in the hours managing the hotel, I got a short term job cleaning the high school at night. I won't even mention how few teachers are still teaching, or even employed (some through stress).
I know at first it appears like a compromise at best and a humiliating come-down at worst, but there's honour in laying aside pride and taking whatever job comes along to get you through. I'm not saying that's where you're at, but rather, I'm building up to making the point that in taking a different temporary job, you get to meet a whole different group of people - through them and the fresh connections made there might come a new opportunity for new work. When your current contacts are exhausted, you place yourself in a fresh environment, do your best to let people see you're a good worker and keep the conversation open asking if they know of other jobs coming up.
There's always the serendipity of being taken in an entirely new direction in life, too. There are precious few 'cradle-to-grave' careers nowadays and one businessman was telling me that it's expected that an adult will entirely retrain four times during the course of their career now. On one hand, it's a disappointment, but on the other, transferable skills are an exceptionally strong asset and very attractive to an employer.