Come up to us: Meaning, that they would cause them to repent of their audacity. This was the favourable sign which Jonathan had requested. 1Sa 14:10, 1Sa 17:43-44; 2Sa 2:14-17; 2Ki 14:8
Come up after me: Gen 24:26-27, Gen 24:42, Gen 24:48; Jdg 4:14, Jdg 7:15; 2Sa 5:24