The Greek adverb ekeise means "there" or "to that place," expressing motion toward a location. It is the directional counterpart to ekei (stationary there) and appears twice in the NT (Acts 21:3; 22:5). It is a classical form that was becoming archaic by NT times.
Both NT occurrences of ekeise appear in Acts and relate to Paul's journeys. Acts 21:3 describes the ship landing at Tyre; Acts 22:5 has Paul describing his journey to Damascus to bring Christians bound to Jerusalem. The second occurrence is particularly charged: Paul was traveling to persecute the Church — and it was on that very journey that the risen Christ apprehended him (Acts 9:1-9). The place Paul journeyed to became the place of his conversion. God's sovereign redirection of movement — taking a person aimed at destruction and turning them toward life — is a pattern repeated throughout Scripture.