The call of God is not bound by method. It pulses through the words of Scripture to ears that hear. It comes unmediated in the sealing Holy Spirit and the word of knowledge. It rings from the inspired preacher, and it echoes in the mouth of the wicked. The call of God is not bound.
The call of God is not bound by person. He calls the poor and the poor in spirit by the power of his resurrection. He calls the unlovely and unloved to be proclaimers of his beauty. He calls the weak and the worldly to the way of holiness. The call of God is not bound.
The call of God is not bound by time. He breaks through to the wicked when they are not seeking him. He whispers to the wayward when they are unaware. He answers at the time we are not ready or expecting, while the prayer is still on our lips. The call of God is not bound.
The call of God is not bound by experience. He revealed his name to Moses though he was stubborn and slow of speech. He spoke to Amos to prophesy though he was not a prophet, nor had he the pedigree of a prophet. Jesus called the disciples from fishing and collecting taxes to the gospel of the kingdom. The call of God is not bound.