How we cite our quotes:
Quote #1
Then Jeshua son of Jozadak, with his fellow priests, and Zerubbabel son of Shealtiel with his kin set out to build the altar of the God of Israel, to offer burnt offerings on it, as prescribed in the law of Moses the man of God. They set up the altar on its foundation, because they were in dread of the neighboring peoples, and they offered burnt offerings upon it to the Lord, morning and evening. And they kept the festival of booths, as prescribed, and offered the daily burnt offerings by number according to the ordinance, as required for each day. (NRSV Ezra 3:2-4)
Then stood up Jeshua the son of Jozadak, and his brethren the priests, and Zerubbabel the son of Shealtiel, and his brethren, and builded the altar of the God of Israel, to offer burnt offerings thereon, as it is written in the law of Moses the man of God. And they set the altar upon his bases; for fear was upon them because of the people of those countries: and they offered burnt offerings thereon unto the Lord, even burnt offerings morning and evening. They kept also the feast of tabernacles, as it is written, and offered the daily burnt offerings by number, according to the custom, as the duty of every day required. (KJV Ezra 3:2-4)
The most obvious way of expressing loyalty to God in the worship tradition of that time is by sacrificing to him. The first group of returned exiles was also living in fear of the surrounding tribes, so they were sacrificing day and night in hopes this would offer some protection. Maybe fear is the motivation here, not loyalty, although a lot of rulers enforce loyalty by scaring the heck out of their people.
Quote #2
The people of Israel, the priests and the Levites, and the rest of the returned exiles, celebrated the dedication of this house of God with joy. They offered at the dedication of this house of God one hundred bulls, two hundred rams, four hundred lambs, and as a sin offering for all Israel, twelve male goats, according to the number of the tribes of Israel. Then they set the priests in their divisions and the Levites in their courses for the service of God at Jerusalem, as it is written in the book of Moses. (NRSV Ezra 6:16-18)
And the children of Israel, the priests, and the Levites, and the rest of the children of the captivity, kept the dedication of this house of God with joy. And offered at the dedication of this house of God an hundred bullocks, two hundred rams, four hundred lambs; and for a sin offering for all Israel, twelve he goats, according to the number of the tribes of Israel. And they set the priests in their divisions, and the Levites in their courses, for the service of God, which is at Jerusalem; as it is written in the book of Moses. (KJV Ezra 6:16-18)
The Law of Moses—the Torah—is the new standard for behavior. Since this is an ancient set of laws (about six or seven hundred years old by that time) that sealed the covenant between God and Israel, sticking to these rules is now the ultimate sign of loyalty.
Quote #3
Then I proclaimed a fast there, at the river Ahava, that we might deny ourselves before our God, to seek from him a safe journey for ourselves, our children, and all our possessions. For I was ashamed to ask the king for a band of soldiers and cavalry to protect us against the enemy on our way, since we had told the king that the hand of our God is gracious to all who seek him, but his power and his wrath are against all who forsake him. So we fasted and petitioned our God for this, and he listened to our entreaty. (NRSV Ezra 8:21-23)
Then I proclaimed a fast there, at the river of Ahava, that we might afflict ourselves before our God, to seek of him a right way for us, and for our little ones, and for all our substance. For I was ashamed to require of the king a band of soldiers and horsemen to help us against the enemy in the way: because we had spoken unto the king, saying, The hand of our God is upon all them for good that seek him; but his power and his wrath is against all them that forsake him. So we fasted and besought our God for this: and he was intreated of us. (KJV Ezra 8:21-23)
Like sacrificing, fasting is another way of demonstrating loyalty and commitment to God. You're giving up something that's of use to you, in order to obtain higher gains. Ezra has faith that fasting will demonstrate to God that he's worthy of protection from ambush by the local tribes.