“Many Christians tend to think of the Trinity as an impractical, speculative doctrine. But not so the Lord Jesus. For Him, it is neither speculative nor impractical—but the very reverse. It is the foundation of the gospel. Without the love of the Father, the coming of the Son, and the regenerating power of the Holy Spirit, there simply could be no salvation.” (Sinclair Ferguson)
For more on this subject, visit Ligonier Ministries.