1057. Verse 17 And God said to Noah, This is the sign of the covenant which I am establishing between Me and all flesh that is on the earth.

'God said to Noah' means that the Church would know this. 'This is the sign of the covenant which I am establishing between Me and all flesh that is on the earth' means that it was a token of the Lord's presence in charity not only with the member of the Church but also with him who is outside the Church.