Genesis 8:11-12. The dove came back to him at evening and beholds, in her mouth was an olive leaf plucked off. So Noah knew that the waters were abated from the earth. (Olive stands for STRENGHT)

Exodus 27:20 "You shall command the children of Israel, that they bring to you pure olive oil beaten for the light, to cause a lamp to burn continually.

Leviticus 24:2 "Command the children of Israel, that they bring to you pure olive oil beaten for the light, to cause a lamp to burn continually.