YHWH–Zidkenu, more commonly written in English as Jehovah Tsidkenu, is a name that means The Lord our Righteousness. Blue Letter Bible says that the actual name occurs only twice in the Old Testament, but the assurance that God is completely and totally righteous permeates the Bible.
5 “Behold, the days are coming, declares the Lord, when I will raise up for David a righteous Branch, and he shall reign as king and deal wisely, and shall execute justice and righteousness in the land. 6 In his days Judah will be saved, and Israel will dwell securely. And this is the name by which he will be called: ‘The Lord is our righteousness.’ Jeremiah 23:5-6
This name of God tells us that He will always do what right, not simply because righteousness is one of His characteristics but because He is righteousness itself. He is the only source of righteousness and goodness.
Other names and characteristics of God that begin with Z are:
For zeal for your house has consumed me, and the reproaches of those who reproach you have fallen on me. Psalm 69:9
His disciples remembered that it was written, “Zeal for your house will consume me.” John 2:17
16 The Lord roars from Zion, and utters his voice from Jerusalem, and the heavens and the earth quake. But the Lord is a refuge to his people, a stronghold to the people of Israel. 17 “So you shall know that I am the Lord your God, who dwells in Zion, my holy mountain. And Jerusalem shall be holy, and strangers shall never again pass through it. Joel 3:16-17
Zebaot is German for Sabbaoth
Zur is Hebrew for Rock