New Revised Standard Version
and next to him Amasiah son of Zichri, a volunteer for the service of the LORD, with two hundred thousand mighty warriors.

Contemporary English Version
Amasiah son of Zichri, who had volunteered to serve the LORD, was third in command, with 200,000 soldiers under him.

New American Bible
Next to him, Amasiah, son of Zichri, who offered himself to the LORD, and with him two hundred thousand valiant warriors.

Douay-Rheims Bible
And after him was Amasias the son of Zechri, consecrated to the Lord, and with him were two hundred thousand valiant men.

And after him was Amasias the son of Zechri, consecrated to the Lord, and with him were two hundred thousand valiant men.

willingly

Judges 5:2,9 O you of Israel, that have willingly offered your lives to danger, bless the Lord. . . .

1 Chronicles 29:9,14,17 And the people rejoiced, when they promised their offerings willingly: because they offered them to the Lord with all their heart: and David the king rejoiced also with a great joy. . . .

Psalm 110:3 With thee is the principality in the day of thy strength: in the brightness of the saints: from the womb before the day star I begot thee.

2 Corinthians 8:3-5,12 For according to their power (I bear them witness) and beyond their power, they were willing: . . .