tn The construction uses the verbal hendiadys: מַרְבִּים לְהָבִיא (marbim léhavi’) is the Hiphil participle followed (after the subject) by the Hiphil infinitive construct. It would read, “they multiply … to bring,” meaning, “they bring more” than is needed.

tn Heb “for the service” (so KJV, ASV).

tn The last clause is merely the infinitive with an object—“to do it.” It clearly means the skilled workers are to do it.