The past tense of take the Lord's name in vain is took the Lord's name in vain.
The third-person singular simple present indicative form of take the Lord's name in vain is takes the Lord's name in vain.
The present participle of take the Lord's name in vain is taking the Lord's name in vain.
The past participle of take the Lord's name in vain is taken the Lord's name in vain.