To come — From their several villages to the place of worship. Seven days — Every seventh day the courses were changed, and the new comers were to tarry 'till the next sabbath day. With them — To be with them, with the chief porters, who alway's abode in the place of God's worship.
Related Commentaries of 1 Chronicles 9:25
1 Chronicles 9:25
25 And their brethren, which were in their villages, were to come after seven days from time to time with them.