'Cause' in the Bible

Therefore I turned about to cause my heart to despair concerning all the labor wherein I had labored under the sun.

Suffer not thy mouth to cause thy flesh to sin; neither say thou before the angel, that is was an error: wherefore should God be angry at thy voice, and destroy the work of thy hands?

Say not thou, What is the cause that the former days were better than these? for thou dost not inquire wisely concerning this.

Dead flies cause the oil of the perfumer to send forth an evil odor;'so doth a little folly outweigh wisdom and honor.