“Dig your heels in”

“Heavy going”

Difficult to do, read, or understand.

“Dig deep”

To make a strong effort or use hidden strength.

“In short supply”

Not enough available.

“In good faith”

With honest intentions.

“In deep water”

In serious trouble.

“All in good time”

Something will happen when the right time comes.

“Go hand in hand”

To be closely connected.

“In one piece”

Safe and not damaged.