God wants us to be active for him. He wants us to take risks, for him. The Bible is clear that if we take these risks, we will be blessed tenfold, and we will be blessing others tenfold. Solomon tells us that we cannot be certain of anything except God's word. As such, wisdom would lead us to the conclusion that there is no need to serve anyone, or anything other than God. Dedicate your family, work, time, and energy to God, and you will be investing in something which is certain to have rewards.