'Dig' in the Bible

Which long for death, but it cometh not; and dig for it more than for hid treasures;

Yea, ye overwhelm the fatherless, and ye dig a pit for your friend.

And thou shalt be secure, because there is hope; yea, thou shalt dig about thee, and thou shalt take thy rest in safety.

In the dark they dig through houses, which they had marked for themselves in the daytime: they know not the light.

They dig in a valley, and he rejoiceth in power, He goeth forth to meet the armour.