Jamieson, Fausset & Brown, on Lam 4:7

“Zain. Her Nazarites were whiter than snow, purer than milk, more ruddy than the old ivory, fairer than the sapphire.”

“Nazarites--literally, "separated ones" (Num 6:2). They were held once in the highest estimation, but now they are degraded. God's blessing formerly caused their body not to be the less fair and ruddy for their abstinence from strong drink. Compare the similar case of Daniel, &c. (Dan 1:8-15). Also David (Sa1 16:12; Sa1 17:42). Type of Messiah (Sol 5:10). rubies--GESENIUS translates, "corals," from a Hebrew root, "to divide into branches," from the branching form of corals. polishing--They were like exquisitely cut and polished sapphires. The "sapphires" may represent the blue veins of a healthy person.”

Imported from an open dataset — not yet checked against the printed edition.