I have harvested most of my scriptures for my ABC Bible Quilt Journal through devotional readings or Bible studies. A word or phrase will impact me strongly and I'll jot it down on a post-it note for a particular letter in my journal.
You can always consult the concordance in the back of your Bible, but that list may be limited.
We're blessed to have so many online resources available. You may have an online site you prefer, but a Bible Quilter from Ontario recently shared a site called knowing-jesus.com that has a ton of words/phrases that you can search for alphabetically. Look under the main menu tab for BIBLE, then choose from the drop-down menu for Words, Phrases, or Names.