Reading the Children's book I saw that the message is that the great multitude should put off marriage until after Armageddon. Rutherford felt that the "end" would come in the early 1940's. This statement was meant to be reassuring the GM to wait till then. It wasn't until the mid 1950's that Bethelites could marry. The negative attitude toward women was evident that while the TMS started in 1943 for men, it wasn't until the late 50's that women were included.
"Receiving the gift, the marching children clasped it to them, not a toy or plaything for idle pleasure, but the Lord's provided instrument for most effective work in the remaining months before Armageddon." Watchtower 1941 September 15 p.288