Ezra 6:10
That they may offer sacrifices of sweet savours unto the God of heaven, and pray for the life of the king, and of his sons.
Cross-reference
In Ezra 7:23, the same concern for the king and his sons appears, asking why God's wrath should fall on them—mirroring the prayer for their well-being.
Ezra 7:17 also involves Persian-ordered sacrifices for the temple, continuing the same support for worship seen here.
Genesis 8:21 uses 'sweet savour' for Noah's offering, the same phrase describing the sacrifices offered here.
Leviticus 1:9 defines the burnt offering as a sweet savour, the exact terminology used for the temple sacrifices here.
Leviticus 1:13 repeats the sweet savour description for burnt offerings, matching the language of the sacrifices here.
In Jeremiah 29:7, exiles are told to pray for the prosperity of their host city, paralleling the command to pray for the Persian king.
In 1 Timothy 2:2, Paul specifically calls for prayers for kings and authorities, directly mirroring the prayer for the king's well-being in Ezra.
In Ephesians 5:2, Christ's sacrifice is described as a fragrant offering to God, echoing the language of sacrifices pleasing to God in Ezra.
In Genesis 20:17, Abraham prays for King Abimelek's healing, showing another instance of intercession for a foreign ruler.