παντες 3956 A-NPM γαρ 1063 CONJ αυτον 846 P-ASM ειδον 1492 5627 V-2AAI-3P και 2532 CONJ εταραχθησαν 5015 5681 V-API-3P και 2532 CONJ ευθεως 2112 ADV ελαλησεν 2980 5656 V-AAI-3S μετ 3326 PREP αυτων 846 P-GPM και 2532 CONJ λεγει 3004 5719 V-PAI-3S αυτοις 846 P-DPM θαρσειτε 2293 5720 V-PAM-2P εγω 1473 P-1NS ειμι 1510 5748 V-PXI-1S μη 3361 PRT-N φοβεισθε 5399 5737 V-PNM-2P
Vincent's NT Word Studies
50. They all saw him. Peculiar to Mark.Spake with them (elalhsen met autwn). Both Matthew and John give the simple dative, aujtoiv to them. Mark's with them is more familiar, and gives the idea of a more friendly and encouraging address. It is significant, in view of Peter's relation to this gospel, that Mark omits the incident of Peter's walk on the waves (Matt. xiv. 28-31).
Robertson's NT Word Studies
6:50 {It is I} (ego eimi). These were the astounding words of cheer. They did not recognize Jesus in the darkness. They had never seen him or any one walk on the water. His voice reassured them.