go on the wagon

There’s a couple of ways we toy with his desire to go on the wagon, so to speak, to renounce power and seek healing.

The other characters, who had so eagerly awaited his arrival, wind up hostile to and disappointed with their usually inebriated pal, who has dared to go on the wagon and be really, really serious.

"I'll go on the wagon starting tomorrow. Promise."

“It’s safe to go on the wagon,” persisted Britt, more mildly.

The play spans six months, one actual death and a second figurative one, during which time David is encouraged to go on the wagon and to shift his affections in the process.