NET
10 so that they may be offering incense to the God of heaven and may be praying for the good fortune of the king and his family.
Darby
10 that they may present sweet odours to the God of the heavens, and pray for the life of the king and of his sons.
KJV
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.