A.T. Robertson Commentary Luke 5:28

"And he forsook all, and rose up and followed him." — Luke 5:28 (ASV)

He forsook all (καταλιπων παντα). This detail in Luke alone. He left his profitable business for the service of Christ.

Followed him (ηκολουθε αυτω). Imperfect active, perhaps inchoative. He began at once to follow him and he kept it up. Both Mr 2:14; Matthew 9:9 have the aorist (ηκολουθησεν), perhaps ingressive.