The phrase Holy, holy, holy, is in two books of the Bible. Which books are they?

Holy, holy, holy is in the book of Isiah also the book of Revelations.

Source:

Isiah 6:3, Revelations 4:8

The song “Thy Word” quotes a Bible verse. Specifically what verse is quoted.

It is Psalm 119:105 “Thy word is a lamp unto my feet and a light unto my path.”

Source:

Psalm 119:105

In the book of Ecclesiastes the author planted orchards. What kind(s) of fruit did they plant?

The orchards had all kinds of fruit in them.

Source:

Ecclesiastes 2:5