Passage
And going on thence a little, he saw James the [son] of Zebedee, and John his brother, and these [were] in the ship repairing the trawl-nets;
And going on thence a little, he saw James the [son] of Zebedee, and John his brother, and these [were] in the ship repairing the trawl-nets;
Mark 1:17 And Jesus said to them, Come after me, and I will make you become fishers of men;
Mark 1:18 and straightway leaving their trawl-nets they followed him.
Mark 1:19 And going on thence a little, he saw James the [son] of Zebedee, and John his brother, and these [were] in the ship repairing the trawl-nets;
Mark 1:20 and straightway he called them; and leaving their father Zebedee in the ship with the hired servants, they went away after him.
Mark 1:21 And they go into Capernaum. And straightway on the sabbath he entered into the synagogue and taught.
The verse centers on "going", "thence", "little", "james", "zebedee", "john", "brother", and "ship". It is saying that the verse draws attention to "going" and "thence", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 18's "and straightway leaving their trawl-nets they followed..." into verse 20's "and straightway he called them and leaving...", so "going" and "thence" belong inside that flow. In Mark context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "going" and "thence" with trust shaped by these words, not by a vague optimism outside the passage.