This, we may rest assured, is the grand remedy--the unfailing resource. It is perfectly true that "God is sovereign," and this is the very reason why we should wait on Him; perfectly true that "human effort is in vain," and that is the very reason for seeking divine power; perfectly true that "we cannot get up a revival," and that is the very reason for seeking to get it _down_; perfectly true that "we must beware of mere excitement;" equally true that we must beware of coldness, deadness, and selfish indifference. The simple fact is, there is no excuse whatever--so long as Christ is at the right hand of God--so long as God the Holy Ghost is in our midst and in our hearts--so long as we have the Word of God in our hands--so long as Matthew xviii. 19 shines before our eyes--there is, we repeat, no excuse whatever for barrenness, deadness, coldness, and indifference--no excuse for heavy and unprofitable meetings--no excuse whatever for lack of freshness in our reunions or of fruitfulness in our service. Let us wait on God, in holy concord, and the blessing is sure to come. PART III. If we turn to Matthew xxi. 22, we shall find another of the essential conditions of effectual prayer. "And all things whatsoever ye shall ask in prayer, _believing_, ye shall receive." This is a truly marvelous statement. It opens the very treasury of heaven to faith. There is absolutely no limit. Our blessed Lord assures us that we shall receive whatsoever we ask in simple faith. The apostle James, under the inspiration of the Holy Ghost, gives us a similar assurance in reference to the matter of asking for wisdom. "If any of you lack wisdom, let him ask of God, that _giveth to all liberally_, and upbraideth not; and it shall be given him. But"--here is the moral condition--"let him ask _in faith, nothing wavering_. For he that wavereth is like a wave of the sea, driven with the wind and tossed. For let not that man think that he shall obtain any thing of the Lord." From both these passages we learn that if our prayers are to have an answer, they must be prayers of faith. It is one thing to utter words in the form of prayer, and another thing altogether to pray in simple faith, in the full, clear, and settled assurance that we shall have what we are asking for. It is greatly to be feared that many of our so-called prayers never go beyond the ceiling of the room. In order to reach the throne of God, they must be borne on the wings of faith, and proceed from hearts united and minds agreed, in holy purpose, to wait on our God for the things which we really require.