An imprecation that everyone should look after their own interests, leaving those who cannot cope to whatever fate befalls them.

Alternative form of sing from the same hymnbook

(idiomatic) To state (something) directly; as opposed to in a long-winded way.

To fire a gun. / (idiomatic) To commit to a course of action. / (soccer, idiomatic, intransitive) To shoot, kick the ball in hope of scoring a goal. / (tennis, informal) To hit a very powerful shot.

(idiomatic) To settle a way of doing something; do decide to do something in a particular way.

(idiomatic, always with "of" and further description) To employ a way of doing something; to do something in a particular way.

(idiomatic, of food or drink) To go down the trachea (windpipe) in one's throat instead of the esophagus (the tube in the throat for swallowed food and fluids), typically resulting in coughing or choking.

(idiomatic) Sad or discouraged, especially as indicated by one's facial appearance.

Of temporal measurements or comparisons: exactly; measured on the level of days, rather than more loosely by weeks, months etc.

(idiomatic, chiefly southern US) This is a big problem; there is unavoidable or demanding work ahead.