Get bible verses from bash shell

verses.sh

#!/bin/bash

set -e # exit on first error
TRANSLATION="kjv"

all_books="
  'GEN' => 'Genesis',
  'EXO' => 'Exodus',
  'LEV' => 'Leviticus',
  'NUM' => 'Numbers',
  'DEU' => 'Deuteronomy',
  'JOS' => 'Joshua',
  'JDG' => 'Judges',
  'RUT' => 'Ruth',
  '1SA' => '1 Samuel',
  '2SA' => '2 Samuel',
  '1KI' => '1 Kings',
  '2KI' => '2 Kings',
  '1CH' => '1 Chronicles',
  '2CH' => '2 Chronicles',
  'EZR' => 'Ezra',
  'NEH' => 'Nehemiah',
  'EST' => 'Esther',
  'JOB' => 'Job',
  'PSA' => 'Psalms',
  'PRO' => 'Proverbs',
  'ECC' => 'Ecclesiastes',
  'SNG' => 'Song of Songs',
  'ISA' => 'Isaiah',
  'JER' => 'Jeremiah',
  'LAM' => 'Lamentations',
  'EZK' => 'Ezekiel',
  'DAN' => 'Daniel',
  'HOS' => 'Hosea',
  'JOL' => 'Joel',
  'AMO' => 'Amos',
  'OBA' => 'Obadiah',
  'JON' => 'Jonah',
  'MIC' => 'Micah',
  'NAM' => 'Nahum',
  'HAB' => 'Habakkuk',
  'ZEP' => 'Zephaniah',
  'HAG' => 'Haggai',
  'ZEC' => 'Zechariah',
  'MAL' => 'Malachi',
  'MAT' => 'Matthew',
  'MRK' => 'Mark',
  'LUK' => 'Luke',
  'JHN' => 'John',
  'ACT' => 'Acts',
  'ROM' => 'Romans',
  '1CO' => '1 Corinthians',
  '2CO' => '2 Corinthians',
  'GAL' => 'Galatians',
  'EPH' => 'Ephesians',
  'PHP' => 'Philippians',
  'COL' => 'Colossians',
  '1TH' => '1 Thessalonians',
  '2TH' => '2 Thessalonians',
  '1TI' => '1 Timothy',
  '2TI' => '2 Timothy',
  'TIT' => 'Titus',
  'PHM' => 'Philemon',
  'HEB' => 'Hebrews',
  'JAS' => 'James',
  '1PE' => '1 Peter',
  '2PE' => '2 Peter',
  '1JN' => '1 John',
  '2JN' => '2 John',
  '3JN' => '3 John',
  'JUD' => 'Jude',
  'REV' => 'Revelation',
"

usage="
verses.sh

-b [required] book name
-r [required] range
-t [optional] translation (default: kjv)

or

list [optional] list all books and their abbreviations for the use in -b option

examples:
1) verses.sh -b john -r 1:29 -t kjv
2) verses.sh -b matthew -r 1:1-20 -t kjv
3) verses.sh list
"

FIRST_ARG="$1"

[ "${FIRST_ARG}" == "list" ] && printf "${all_books}" && exit

while getopts b:r:t:h: flag; do
    case "${flag}" in
    t)
        TRANSLATION=${OPTARG}
        ;;
    r)
        RANGE=${OPTARG}
        ;;
    b)
        BOOK=${OPTARG}
        ;;
    h)
        printf "${usage}"
        exit
        ;;
    *)
        printf "${usage}"
        exit
        ;;
    esac
done

if [ -z "${BOOK}" ] || [ -z "${RANGE}" ]; then
    echo "[!] -b and -r options are required. Check again."
    printf "${usage}"
    exit 1
fi

bible_api_result=$(curl --connect-timeout 10 --max-time 10 -s "https://bible-api.com/${BOOK}+${RANGE}")

chapter_numbers=$(echo "${bible_api_result}" |  jq -r '.verses[].chapter')
verse_numbers=$(echo "${bible_api_result}"|  jq -r '.verses[].verse')
verse_texts=$(echo "${bible_api_result}"|  jq -r '.verses[].text')

chapter_and_verses=$(paste -d ":" <(echo "${chapter_numbers}") <(echo "${verse_numbers}"))

paste -d " " <(echo "${chapter_and_verses}") <(echo "${verse_texts}" | awk NF)