Of course, none of us is capable of running swiftly on the right course while we remain in the earthly confinement of our bodies. Indeed, most of us are so oppressed with weakness that we make little progress – staggering, limping, and crawling on the ground. But let us move forward according to the measure of our resources and pursue the path we have begun to walk. None of us will move forward with so little success that we will not make some daily progress in the way. Therefore, let us keep trying so that we might continually make some gains in the way of the Lord, and neither let us despair over how small our successes are. For however much our success fall short of our desire, our efforts aren’t in vain when we are farther along today than yesterday. So let us fix our eyes on the goal with sincerity and simplicity, aspiring to that end – neither foolishly congratulating ourselves, nor excusing our evil deeds. Let us press on with continual striving toward that goal so that we might surpass ourselves – until we have finally arrived at perfection. This, indeed, is what we follow after all our lives, but we will only possess it when we have escaped the weakness of the flesh and have been received into His perfect fellowship.
John Calvin, A Little Book on the Christian Life (pgs. 16-17)
Baptism reflects all three aspects of a disciple’s identity [rational, relational, and missional], with particular emphasis on missional. First, baptism is a sign that we have learned the gospel. It signifies our identification with Christ in his death as we are lowered into his “watery grave,” and identification with his life, where we are raised up into his resurrection life (Rom 6:4).
Second, we are baptized into two overlapping communities. The first is the divine community of the Trinity: “Baptizing them in the name of the Father and the Son and the Holy Spirit” (Matt 28:19). The second community is the church: “For in one spirit we were all baptized into one body” (1 Cor 12:13). Baptism results in a new spiritual family–the family of the Trinity.
Third, baptism is missional because it is the outcome of obedience to the Gospel Commission. If sent disciples don’t share the gospel in the power and authority of Jesus, then people don’t get to respond by repentance, faith and baptism.
In a sense, baptism is the end of the Gospel Commission and, at the same time, it is its beginning. Baptism begins our participation in wonderful gospel mission. Whenever someone is baptized, another disciple is sent in the power and authority of Jesus to join the mission of making disciples of all nations.
Jonathan K. Dodson, Gospel-Centered Discipleship (pg. 32-33).