Thursdays are for pastors. How we view the Old Testament and New Testament is vitally important. The Bible as a whole is the Sword which we carry, and thus is an offensive and defensive weapon for ministry. The Word of God is called the Sword of the Spirit in Ephesians 6, and every Christians is to have one, but pastors especially are to wield the sword in gospel ministry and prayer.
Foremost, we must view the Old Testament as essential to the New and the New Testament essential to the Old. Particularly, the first eleven chapters of Genesis need to never be set aside as non-essential. They deal with matters introducing categories which without the gospel makes no sense. Moreover, the six days of creation cannot be viewed anyway other than 24 hour days or we face the obstacle of death before sin over millions of years instead of being able to explain to people how sin entered the world and then death. When we get to the New Testament we must realize that the Old Testament has preached Christ throughout and the New makes it clear. Passages like John 5 and Luke 24 where Jesus makes it plain that Moses, the Psalms, the Prophets, everything bore witness of Him.
Christopher Ash says something along these lines:
The Old Testament is the Father’s testimony to the Son by the Spirit, the New Testament is the Spirit’s testimony to the Son who reveals the Father by the [Spirit-carried] apostles.
I’ve taken some liberty in explaining that above. But you’d do good to read Christopher Ash on Hearing the Spirit. Nonetheless, the Bible is essential. Some say we need a living word and they mean not the Bible. But the Bible claims that it is itself a living word, active, and piercing. And the Father, Son, and Holy Spirit all agree.
Therefore, we can say that all pastoral ministry is Word ministry.