Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
WEB

2 Chronicles 26:12

The whole number of the heads of fathers’ households, even the mighty men of valor, was two thousand six hundred.

Parallel Translations

LXXView canonical →
The whole number of the chiefs of families of the mighty men of war [was] two thousand six hundred;
Brenton's Septuagint Translation
LXX2012View canonical →
The whole number of the chiefs of families of the mighty men of war [was] two thousand six hundred;
Septuagint in American English (2012)
KJVView canonical →
The whole number of the chief of the fathers of the mighty men of valour were two thousand and six hundred.
King James Version