“beyond the Jordan.” The phrase “beyond the Jordan” can refer to either east (Deut. 3:8; Josh. 24:8) or west (Deut. 3:20; 11:30; Josh. 5:1) of the Jordan River depending on the context or the location of the speaker. In this context, “beyond the Jordan” refers to the west side of the Jordan River.
“westward.” Or, “toward the Mediterranean Sea.”
“that their heart melted, nor was there spirit in them anymore.” Exodus 15:15-16 speaks of fear “falling” on the Canaanites, and them “being melted away.” The word “spirit” here refers to their attitude, courage, etc., and when God dried up the Jordan the Canaanites lost all their courage.