ziːl
Fervor or tireless devotion for a person, cause, or ideal and determination in its furtherance.
And his disciples remembered that it was written, The zeal of thine house hath eaten me up.
John 2:17, KJV
Brethren, my heart's desire and prayer to God for Israel is, that they might be saved. For I bear them record that they have a zeal of God, but not according to knowledge. For they being ignorant of God's righteousness, and going about to establish their own righteousness, have not submitted themselves unto the righteousness of God. For Christ is the end of the law for righteousness to every one that believeth.
Romans 10:1-4, KJV
On the other hand, I reflect on the exultation of my rivals, saying, They will scoffingly sneer behind my back, and impute my zeal in behalf of my family to a want of humanity.
Saadi, Gulistan
Thus act so evilly born shall cool the hearts Of all his people and freeze up their zeal, That none so small advantage shall step forth To cheque his reign, but they will cherish it
Shakespeare, King John, Act 3, Scene 4