"A good Christian" joke

AN old chieftain was being evangelised by a missionary. Noting that the men had the habit of filing their teeth to sharp points, the missionary put emphasis on the' Thou Shalt Not'. The aged chieftain listened, patiently.

'You mean that I must not take my neighbour's wife.'

'That's correct,' said the missionary.

'Or his oxen, or his elephants.'

'That's right.'

'Or I must not dance the war dance and then ambush him on the road and kill him.'

'So right.'

'Then I can become a good Christian sighed the chieftain,' for I cannot do any of these things. I am old.'