<p>How do we count Psalms 9 & 10? Hebrew has two distinct psalms. But LXX & Vulgate combine them into one (which throws off the numbering). The Hebrew is a “fragmentary acrostic,” utilizing nearly all the Hebrew alphabet (missing daleth, mem, nun, samek; also pe & ’ayin are transposed & sin is missing). However, while the two psalms deal with similar subject matter, the mood is quite different between them.