where does "pierce" come from?

I'm writing a (very) brief study of Psalm 22. Most English translations render Psa 22.16 somewhat along the lines of the NASB, which reads:

For dogs have surrounded me; A band of evildoers has encompassed me; They pierced my hands and my feet.

The third phrase of this verse—the one that, for obvious reasons, is most significant for Christian readings of this passage—differs significantly from the text published in the BHS:

כי סבבוני כלבים עדת מרעים הקיפוני דארי ידי ורגלי

kî sĕḇāḇûnî kĕlāḇîm ‘ăḏaṯ mĕrē‘îm hiqqîpûnî kā’ărî yāḏay wĕraglāy

For dogs have encircled me; a congregation of the wicked surrounded me. As the lion my hands and my feet.

The Septuagint is similar, except [*sigh*] for the final phrase:

ὅτι ἐκύκλωσάν με κύνες πολλοἰ συναγωγὴ πονηρευομένων περιέσχον με ὤρυξαν χεῖράς μου καὶ πόδας

hoti ekyklōsan me kynes polloi synagōgē ponēreuomenōn perieschon me ōryxan cheiras mou kai podas

For many dogs have encircled me; a gathering of evildoers has surrounded me; they have dug out my hands and feet.

Brenton translates ὤρυξαν pierced, so I did a (very) little bit of work among the lexica. BDAG offers three general definitions, all of which are related to digging (§5393). Louw-Nida is similar (§19.55), as is Liddell-Scott-Jones (§31131).

Clearly, the English translations (NASB, NLT, NIV, KJV; but not NRSV, NET) exhibit a preference for "pierce" at Psa 22.16, including Brenton's translation of the LXX. Does anyone know where this preference comes from? Granted that the BHS reading is incomprehensible and the LXX isn't obviously related to a Hebrew Vorlage, this verse is certainly perplexing. But given the theological freight that the phrase "they pierced my hands and feet" bears, especially in the very psalm Jesus is said to have quoted from the cross, can anyone provide any rational justification for this translation?

translating Genesis 1–11 [LXX] — UPDATE

According to Murphy's Law, if it can go wrong, it will. I find this scarcely adequate; I'm often amazed at how often something that couldn't possibly go wrong suddenly goes pear-shaped.

Just days after announcing the "coming out" of a new wiki website for the translation of Genesis 1–11 [LXX], the wiki host I was using suffered a major attack and went offline for a couple days. Though the old site is still available, I have moved the whole wiki over to a new hosting service. The new website, GreekBible, is up and available for anyone interested. I have expanded the scope of GreekBible to include the entire, well . . . Greek Bible; as of right now, however, only the text of Genesis 1–11 is available.

I have added a link to GreekBible in my sidebar (under "collaboratives"). Feel free to check it out, join the community, and add to the discussion.

[UPDATE: I have just added the Greek text of Romans 1–8 to GreekBible (click here). More texts will be coming shortly, though probably not before next week.]

translating Genesis 1–11 [LXX]

I'd like to announce a new addition in the "collaboratives" section of Verily Verily's sidebar. I am currently developing a wiki that, I hope, will facilitate a community-driven translation of (portions of) Genesis 1–11 [LXX], including discussions of translational, linguistic, and interpretive issues involved in such a translation. This project is currently motivated by a seminar led by one of my colleagues on critical issues of Genesis 1–11, including literary, theological, and historical issues and expanding also to include issues of these chapters' reception, whether in the Hellenistic or modern eras (the LXX and a canon of Western literature, respectively).

The wiki is publicly accessible, but I have required a password in order to save changes made to any pages. If you're interested in participating in (rather than simply observing) this project, please leave a comment letting me know how to contact you and I'll send you the password. If you leave an e-mail address, be sure to leave it "in code" (e.g., rafael [at] yahoo [dot] com).