The Father’s will is specifically seen in the generations. On day five the Father begins to establish family––fathers, mothers and offspring––in the seas and air. Through these families God’s purpose will be completed: the earth will be full. Without these families something is missing, the earth is incomplete and barren. God’s blessing means the continuation of life and fullness. It expands and causes his creatures to prosper.
God’s blessing also gives permission to the birds and sea creatures to be fruitful and multiply. Their increase is not contrary to the Father’s will; rather it is in accordance with it. In other words, they are given permission to be successful and this is done in the light of the threatened disorder and death that was soon to come into the world. Even before death is introduced, the Father will not let death be lord. Instead life and blessing will increase even in the face of death. Life will always overcome death because the rate of reproduction is multiplication while the rate of death is only substraction. In the fifth day we see that grace will overcome sin and death. The Father has set something in motion that not even the devil can stop.
We can apply the truths of the sea creatures and birds to us today. God’s blessing initiates the cycle of life––it enables us to participate in his purpose––but it is up to us to carry out what God has started. The fullness of God’s glory on earth is left up to his creatures. His creatures are blessed in order to fulfil his plan. Without their fruitfulness and multiplication the earth is left empty, without the covering of God’s glory. Thus in the light of what God did on day five we can understand more clearly why Paul said: “the church, which is his body, the fullness of him who fills everything in every way” (Eph. 1:22-23).