George Haydock's Catholic Commentary
Job 39:35
One. Septuagint, "Once I have spoken, but I will not add again." (Haydock) --- I have spoken too much, but I will be more cautious. Hebrew, "I have spoken one thing, and I will not answer; (Calmet) yea, two things, but I will go no farther." Many of my observations may be too strong, as I am not perfectly aware what may be the designs of Providence in my regard. (Haydock)