Were frequently used as types of kings, or men of wealth and power, Psalm 37:35 Isaiah 2:13 Daniel 4:10-26 Zechariah 11:1,2 . The "tree of knowledge of good and evil" bore the forbidden fruit, by eating of which Adam fatally increased his knowledgeof good by its loss, of sin and woe by actual experience, Genesis 2:9,17 . The "tree of life" may have been both an assurance and a means of imparting life, a seal of eternal holiness and bliss, if man had not sinned. Compare Revelation 22:2 .