As early as 1858 Spurgeon preached a broad way (i.e. ecumenism, Matthew 7:13-14).
"Our Father." That then, includes those of God's children who differ from us in their doctrine. Ah! There are some that differ from us as wide as the poles; but yet they are God's children. Come, Mr. Bigot, do not kneel down, and say, "My Father," but "Our Father." "If you please, I cannot put in Mr. So-and-So, for I think he is a heretic." Put him in, sir; God has put him in, and you must put him in too, and say, "Our Father." Is it not remarkable how very much alike all God's people are upon their knees? Some time ago at a prayer-meeting I called upon two brothers in Christ to pray one after another, the one a Wesleyan and the other a strong Calvinist, and the Wesleyan prayed the most Calvinistic prayer of the two, I do believe - at least, I could not tell which was which. I listened to see if I could not discern some peculiarity even in their phraseology; but there was none. "Saints in prayer appear as one." (The New Park Street Pulpit, Vol. IV, p. 390, Sept. 12, 1858, bold added
It strikes me that the tokens of union are much more prominent than the tokens of division. But what are they? First there is a union in judgment upon all vital matters. I converse with a spiritual man, and no matter what he calls himself, when we talk of sin, pardon, Jesus, the Holy Spirit, and such like themes, we are agreed. We speak of our blessed Lord. My friend says that Jesus is fair and lovely: so say I. He says that he has nothing else to trust to but the precious blood; nor have I anything beside. I tell him that I find myself a poor, weak creature; he laments the same. I live in his house a little while: we pray together at the family altar, you could not tell which it was that prayed, Calvinist or Armenian, we pray so exactly alike; and when we open the hymn-book, very likely if he happens to be a Wesleyan he chooses to sing, "Jesus, lover of my soul." I will sing it, and then next morning he will sing with me, "Rock of ages, cleft for me." If the Spirit of God be in us, we are all agreed upon great points. Let me say that among true saints the points of union even in matters of judgment are ninety-nine, and the points of difference are only as one. (Metropolitan Tabernacle Pulpit, Vol. 12, p. 5-6) see more at http://www.atruechurch.info/spurgeon.html