OET interlinear YAC (JAM) 3:3

uW Translation Notes:

Note 1 topic: grammar-connect-time-background

δὲ

(Some words not found in SR-GNT: εἰ Δέ τῶν ἵππων τούς χαλινούς εἰς τά στόματα βάλλομεν εἰς τό πείθεσθαι αὐτούς ἡμῖν καί ὅλον τό σῶμα αὐτῶν μετάγομεν)

James uses Now to introduce background information in the form of an illustration that will help his readers understand what he wants to teach them. If it would be helpful to your readers, you could translate the word with a phrase that shows that James is going to offer an illustration, as UST does.

Note 2 topic: translate-unknown

τῶν ἵππων τοὺς χαλινοὺς εἰς τὰ στόματα βάλλομεν

˱of˲_the horses (Some words not found in SR-GNT: εἰ Δέ τῶν ἵππων τούς χαλινούς εἰς τά στόματα βάλλομεν εἰς τό πείθεσθαι αὐτούς ἡμῖν καί ὅλον τό σῶμα αὐτῶν μετάγομεν)

These horses are large animals that are used in many cultures to transport people and goods, and bits are small pieces of metal that are placed into horses’ mouths to control where they go. If your readers would not be familiar with horses and bits, in your translation you could use the name of another animal and a different device, or you could use a general expression. Alternate translation: [we put pegs into the noses of camels] or [we use small devices on the bodies of large animals]

εἰς τὸ πείθεσθαι αὐτοὺς ἡμῖν

into in_order (Some words not found in SR-GNT: εἰ Δέ τῶν ἵππων τούς χαλινούς εἰς τά στόματα βάλλομεν εἰς τό πείθεσθαι αὐτούς ἡμῖν καί ὅλον τό σῶμα αὐτῶν μετάγομεν)

Alternate translation: [so that they will obey us]

Note 3 topic: figures-of-speech / metonymy

καὶ ὅλον τὸ σῶμα αὐτῶν μετάγομεν

(Some words not found in SR-GNT: εἰ Δέ τῶν ἵππων τούς χαλινούς εἰς τά στόματα βάλλομεν εἰς τό πείθεσθαι αὐτούς ἡμῖν καί ὅλον τό σῶμα αὐτῶν μετάγομεν)

James means that by using a bit, people can turn the body of a horse in whatever direction they want. James is using the action of turning a horse to mean guiding or controlling it in general. Alternate translation: [this enables us to guide their whole body] or [this enables us to control their whole body]

ὅλον τὸ σῶμα αὐτῶν

all (Some words not found in SR-GNT: εἰ Δέ τῶν ἵππων τούς χαλινούς εἰς τά στόματα βάλλομεν εἰς τό πείθεσθαι αὐτούς ἡμῖν καί ὅλον τό σῶμα αὐτῶν μετάγομεν)

Since James speaks of horses in the plural, it might be more natural in your language to use the plural form of body. Alternate translation: [their whole bodies]