Whatever we have, God justly claims a part. Out of the people's share God required one in fifty, but out of the soldiers' share only one in five hundred. The less opportunity we have of honouring God with personal services, the more should we give in money or value.
SDA Bible Commentary (limited)
Volume 1-7
25. The Lord spake. That is, after the ritual of purification had been completed and the men had entered camp.