As Chrsitians, we believe that God has revealed Himself in His word. The Bible is a revelation of what we need to know. It doesn’t tell us everything about everything, but it tells us, in the words of the Westminster Confession, “the whole counsel of God concerning all things necessary for his own glory, man’s salvation, faith and life.” God created and God expects us to do what the Holy Spirit has revealed to us in the Bible (for example: repent and believe in the Gospel).
Therefore, picking and choosing what you want to believe from Scripture is obviously absurd. Why not just choose nothing and be done with it? It makes a mockery of revelation. It makes a mockery of the Holy Spirit speaking to us through the Scripture. Similarly, we should reject Hippie Jesus, Feminist Jesus, Global Warming Jesus, and the like. These are the fraudulent concoctions of false teachers. That the Scripture is silent about such nonsense is shown in that no one in the history of the church believed this stuff until the last century. If we believe that the Gates of Hell will not prevail against the church (Matthew 16:18), then we believe that it has not prevailed against it either. If politics and social matters were really the content of what mattered to God, you’d think that the Holy Spirit would have revealed this to our forefathers.
So, no to tired political journeys, no to Christianity and water, including the kind offered by the church growth movement, and no to mysticism (aka. direct, and usually contra-Biblical, revelation). Take the Bible for what it is. Take our Lord for who He is as revealed in His word. It’s the only serious thing to do.