13 And seven priests bearing seven trumpets of rams' horns before the ark of the LORD went on continually, and blew with the trumpets: and the armed men went before them; but the rearward came after the ark of the LORD, the priests going on, and blowing with the trumpets.
Joshua 6:13 Cross References - KJV
26 And it came to pass, when God helped the Levites that bare the ark of the covenant of the LORD, that they offered seven bullocks and seven rams.
13 But he that shall endure unto the end, the same shall be saved.
9 And let us not be weary in well doing: for in due season we shall reap, if we faint not.