"He charged them not to depart from Jerusalem, but to wait for the promise of the Father." Acts 1:4 ASV.
In speaking of the saints in Jerusalem at Christ's birth - with Simeon and Anna - we saw how the call to waiting is no less urgent now, though the redemption they waited for has come, than it was then. We wait for the full revelation in us of what came to them, but what they could scarcely comprehend. In the same way, it is with waiting for the promise of the Father. In one sense, the fulfillment can never come again as it came at Pentecost. In another sense, and that in as deep a reality as with the first disciples, we need to wait daily for the Father to fulfill His promise in us.
The Holy Spirit is not a person distinct from the Father in the way two persons on earth are distinct. The Father and the Spirit are never without or separate from each other. The Father is always in the Spirit; the Spirit works nothing but as the Father works in Him. Each moment, the same Spirit that is in us is in God, too. And, he who is most full of the Spirit will be the first to wait on God most earnestly to further fulfill His promise and to still strengthen him mightily by His Spirit in the inner man. The Spirit in us is not a power at our disposal.
Nor is the Spirit an independent power, acting apart from the Father and the Son. The Spirit is the real, living presence and the power of the Father working in us. Therefore, it is he who knows that the Spirit is in him who waits on the Father for the full revelation and experience of the Spirit's indwelling. It is he who waits for His increase and abounding more and more.
See this in the apostles. They were filled with the Spirit at Pentecost. When they, not long after, on returning from the council where they had been forbidden to preach, prayed afresh for boldness to speak in His name, a fresh coming down of the Holy Spirit was the Father's fresh fulfillment of His promise.
At Samaria, by the Word and the Spirit, many had been converted, and the whole city was filled with joy. At the apostles' prayer, the Father once again fulfilled the promise. (See Acts 8:14-7.) Even so to the waiting company - "We are all here before God"(see Acts 10:33) – in Cornelius' house. And so, too, in Acts 13: It was when men, filled with the Spirit, prayed and fasted, that the promise of the Father was afresh fulfilled, and the leading of the Spirit was given from heaven: "Separate me Barnabas and Saul" (Acts 13:2). So also we find Paul, in Ephesians, praying for those who have been sealed with the Spirit, that God would grant them the spirit of illumination. And later on, that He would grant them, according to the riches of His glory, to be strengthened with might by the Spirit in the inner man. The Spirit given at Pentecost was not something that God failed with in heaven, and sent out of heaven to earth. God does not, cannot, give away anything in that manner; when He gives grace or strength or life, He gives it by giving Himself to work it - it is all inseparable from Him.
Much more so is the Holy Spirit. He is God, present and working in us. The true position in which we can count on that working with an unceasing power is as we, praising for what we have, still unceasingly wait for the Father's promise to be still more mightily fulfilled.
What new meaning and promise does this give to our lives of waiting! It teaches us to continually keep the place where the disciples tarried at the footstool of the throne. It reminds us that, as helpless as they were to meet their enemies, or to preach to Christ's enemies until they were endued with power, we, too, can only be strong in the life of faith, or the work of love, as we are in direct communication with God and Christ. They must maintain the life of the Spirit in us. This assures us that the omnipotent God will, through the glorified Christ, work in us a power that can bring unexpected things to pass, impossible things.
Oh, what the church will be able to do when her individual members learn to live their lives waiting on God - when together, with all of self and the world sacrificed in the fire of love, they unite in waiting with one accord for the promise of the Father, once so gloriously fulfilled, but still unexhausted! Come and let each of us be still in the presence of the inconceivable grandeur of this prospect: the Father waiting to fill the church with the Holy Spirit. And willing to fill me, let each one say. With this faith, let a hush and a holy fear come over the soul, as it waits in stillness to take it all in. And, let life increasingly become a deep joy in the hope of the ever fuller fulfillment of the Father's promise.
“My soul, wait only on God! “