And Moses wrote down their departure points for their journeyings by the word of the LORD. The journeyings were by the word of the Lord, or so the Ibn Ezra explains the verse. Earlier the Torah already mentioned: By the LORD’s word they would camp and by the LORD’s word they would journey onward and so, explains the Ramban, there is no need to repeat this information. Instead it is telling us that God told Moses to write all their departure points. Moses wrote down their departure points for their journeyings and he did this because of the word of the Lord. This was to stress that not only was each individual journey under God’s providence but so too was the entire trip: God sees the whole picture, the big and the small.