'First' in the Bible

Let the war-carriage be yoked to the quick-running horse, you who are living in Lachish: she was the first cause of sin to the daughter of Zion; for the wrongdoings of Israel were seen in you.

And thou, O tower of the flock, the strong hold of the daughter of Zion, unto thee shall it come, even the first dominion; the kingdom shall come to the daughter of Jerusalem.

Will the Lord be pleased with thousands of sheep or with ten thousand rivers of oil? am I to give my first child for my wrongdoing, the fruit of my body for the sin of my soul?