Nothing we do as evangelicals makes sense if it is divorced from a strong experiential and doctrinal grasp of the coordinated work of Jesus and the Spirit, worked out against the horizon of the Father’s love. Personal evangelism, conversational prayer, devotional Bible study, authoritative preaching, world missions, and assurance of salvation all presuppose that life in the gospel is life in communion with the Trinity. Forget the Trinity and you forget why we do what we do; you forget who we are as gospel Christians; you forget how we got to be like we are.
Sanders, Fred (2010-08-31). The Deep Things of God: How the Trinity Changes Everything (p. 9). Good News Publishers/Crossway Books. Kindle Edition. http://www.amazon.com/The-Deep-Things-God-Everything/dp/1433513153