And Meshelemiah had sons and brethren, strong men, eighteen, &c.] He had seven sons, ( 1 Chronicles 26:1-3 ) and therefore must have eleven brethren or kinsmen.
7
Sons of Shemaiah [are] Othni, and Rephael, and Obed, Elzabad; his brethren [are] sons of valour, Elihu and Semachiah,
8
all these [are] of the sons of Obed-Edom; they, and their sons, and their brethren, men of valour with might for service, [are] sixty and two of Obed-Edom.
9
And to Meshelemiah [are] sons and brethren, sons of valour, eighteen;
10
and to Hosah, of the sons of Merari, [are] sons: Shimri the head (though he was not first-born, yet his father setteth him for head),
11
Hilkiah the second, Tebaliah the third, Zechariah the fourth; all the sons and brethren of Hosah [are] thirteen.
Young's Literal Translation is in the public domain.