'Principles' in the Bible

God has declared one principle; two principles I have heard: God is strong,

The rulers do not know nor do they understand;They walk on in the darkness [of complacent satisfaction];All the foundations of the earth [the fundamental principles of the administration of justice] are shaken.

A just balance and [honest] scales are the Lord’s;All the weights of the bag are His concern [established by His eternal principles].

My son, if you stop listening to instruction, you will stray from the principles of knowledge.

His God instructs him; he teaches him the principles of agriculture.