All In One Accord - What Does This Mean?

One of the old brothers in that small, hardy band of Christians was constantly worried about the diversity of our backgrounds [Anglican, Methodist, Dutch Reformed]. He was convinced that a critical part of the Scripture describing the early church was "these all continued with one accord." He had the idea that the "one-accordness" was the crucial factor about the outpouring of the Holy Spirit on the Day of Pentecost rather than the day itself. He constantly disturbed the congregation with his complaint that "we are not one, we are not one."
The, the Lord in HIs mercy gave him a vision [of Pentecost] that provided a great lesson for the old man and for all of us. ...
One stood and declared, "Brethren, we were five hundred when Jesus ascended, and I just counted: now we're one hundred and twenty. The others are gone. We're losing, and I feel it is because we've lost our leadership. Jesus is gone. ... We must find someone to take the place of Jesus."
After a moment's pause, he added, "And so, I would nominate Brother Peter."
Another man got up and said, "I couldn't second that because I haven't forgotten what Peter did. The Lord knows I love Brother Peter, and I admire him, but how can he be the leader when he failed so badly?"
So, down goes Peter.
Another one gets up and says, "Well, we need a man of great love, and I would suggest John as that man."
Someone else protested, "How can you want John? He wanted to sit on Jesus' right hand and lord it over us. I wouldn't vote for John."
"Well, said another, "we must have a man of faith, and James is a man with great insight into faith. I nominate James."
"But," came the argument, "he is the brother of John and he wanted to sit on the left hand of the Lord."
Then someone else said, "What we need is a very cautious man who will not accept just anything. I nominate Thomas."
Another declared, "Thomas is not cautious; he's just a doubter. He'll get us all doubting."
Then Peter got up and said, "How far are we going with this? If we begin to expose everybody's failures and weaknesses, who of us is any good at all? I do not feel qualified to stand in the shoes of the Master, but I want to suggest this: Anybody in this meeting who feels so qualified, stand up and I will follow you, and I'll call everybody else to follow you."
No one stood up. At last, they were in one accord.
The old brother's vision helped me in later life to understand that the accord necessary for God's blessing does not center on how good we or anyone else may be, but rather on our willingness to acknowledge and accept the weaknesses and failures of each one, including ourselves. This stopped the disturbance in our little congregation and we were humbled. We knew that we were not good at all and that even Jesus had said, "I can do nothing of myself" (John 5:30). So we trusted the Lord to help us.

Source: David du Plessis - From "A Man Called Mr. Pentecost", as told to Bob Slosser, Ch. 2, pp 12-14