Trinity
Martin Downes posted two clarifying quotes on the eternal generation of the Son to “straighten out any wonky thoughts.” (I think the reason some people back away from the doctrine of eternal generation is because it’s hard to think about it without “wonky thoughts.”)
Sovereignty
The purposes of God give our lives and this world meaning: “God’s good purpose shows us that the appearance of vanity and futility in this world is just that—mere appearance. To trust in God’s good purpose is the essence of godly faith. Thus, no Christian can be an ultimate pessimist.” —R. C. Sproul at Ligonier Ministries
God’s sovereignty and human responsibility in the Westminster Standards: “Many people in our own day try to cut through the mystery that earlier generations affirmed. They strip God of his sovereignty and claim that man decides his own fate; that he, apart from God, is the captain of his own fate. Others seek to preserve the sovereignty of God at the expense of human responsibility and freedom, biblical defined. The Westminster Standards give us a third alternative—one that respects the mystery of the relationship between divine sovereignty and responsibility and allows us to affirm both scriptural truths.” —J. V. Fesko at Crossway Blog