put your hand to the plough
put (one's) hand to the plough
To set to work; to begin or get busy working. (Spelled "hand to the plow" in American English.) Primarily heard in UK. We've spent a long time planning our business model, and now it's time to put our hand to the plough. My father loves his work. Even after retiring, he still puts his hand to the plough with various projects.
put (or set) your hand to the ploughembark on a task.
This phrase alludes to Luke 9:62: ‘And Jesus said unto him, No man, having put his hand to the plough, and looking back, is fit for the kingdom of God’.