In copying from 𝓞 into 𝓟, Oliver Cowdery initially skipped the phrase “the Lord would that”, but he immediately caught his error after writing only the they of the following “they should go”. Oliver crossed out the they and wrote inline the correct “the Lord would that they should go”.
Summary: Maintain in Alma 16:5 the corrected reading in 𝓟 that includes the phrase “the Lord would that”.