Here Paul speaks about a person continuing in faith as if he were an athlete fighting to win a contest or a warrior fighting a battle. Alternate translation: "Try your hardest to obey Christ's teachings with as much energy as an athlete uses in a contest" (See: [[rc://en/ta/man/translate/figs-metaphor]])
This continues the metaphor. Paul speaks about a person receiving eternal life as if he were a victorious athlete or warrior taking their prize. Alternate translation: "Take eternal life as your reward as a victorious athlete takes his prize" (See: [[rc://en/ta/man/translate/figs-metaphor]])
Paul expresses the idea of location in order to signal the idea of the people to whom Timothy was speaking. Alternate translation: "to many witnesses" (See: [[rc://en/ta/man/translate/figs-metonymy]])