13 and the seven priests with the seven trumpets, marched on before the Lord and after them came the warriors, and all the rest of the multitude followed the ark of the covenant of the Lord. And the priests sounded the trumpets;
Joshua 6:13 Cross References - Thomson
1 Chronicles 15:26
26 And because God strengthened the Levites who carried the ark of the covenant of the Lord, therefore they sacrificed each seven bulls and seven rams.
Matthew 24:13
13 But he who persevereth to the end shall be saved.
Galatians 6:9
9 therefore let us not be weary in well doing, for in due time we shall reap without being tired.