Meaning: Someone who holds militantly to the establishment of the state of Israel on the land promised in the Bible.
Psalm 2:6
Yet have I set my king upon my holy hill of Zion.
Psalm 50:2
Out of Zion, the perfection of beauty, God hath shined.
Psalm 132:13
For the Lord hath chosen Zion; he hath desired it for his habitation.