And behold, men brought in a bed a man which was taken with a palsy: and they sought means to bring him in, and to lay him before Him. – Luke 5:18

The great mass of persons who are brought into the kingdom of Christ are converted through the general prayers of the church by the means of her ministry. Probably three out of four of the members of any church will owe their conversion to the church’s regular teaching in some form or other; her school, her pulpit, her press has been the nets in which they were taken. Private personal prayer has, of course, in many instances been mingled with all this; but still the most of cases could not be so distinctly traced out as to be attributable mainly to individual prayers or exertions…There are some, again, who are led to Jesus by the individual efforts of one person; just as Andrew found his own brother Simon, so one believer by his private communication of the truth with another person becomes instrumental, by the power of God’s Spirit, in his conversion. One convert will bring another, and that other a third. But this narrative seems to show that there are cases which will neither be brought by the general preaching of the word, nor yet by the instrumentality of one; they require that there should be two, or three, or four in holy combination, who, with one consent, feeling one common agony of soul, shall resolve to band themselves together as a company for this one object, and never to cease from their holy confederation until this object is gained and their friend is saved. This man could not be brought to Christ by one, he must have four to lend their strength for his carrying, or he cannot reach the place of healing…Let brotherly quaternions look after these by God’s help.  ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0981.cfm