主的名就是主的人位
在行传二章二十一节彼得接着说，“那时，凡呼求主名的，就必得救。”行传二章二十一节说到呼求主名。名是指人位。耶稣是主的名，那灵是主的人位。我们呼求“主耶稣”，就接受那灵。
呼求主名的实行与榜样
呼求主名不是新约的新作法。许多信徒今天没有呼求主耶稣的名。一些只跟随传统实行的人，批评那些呼求主名的人。
呼求主名开始于创世记四章二十六节，人类的第三代以挪士。接著有约伯、亚伯拉罕、以撒、摩西和以色列人、参孙、撒母耳、大卫、诗人亚萨、诗人希幔、以利亚、以赛亚、耶利米和其他的人；他们在旧约时代都呼求主名。以赛亚也嘱咐寻求神的人，要呼求祂（赛五五6）。甚至外邦人也晓得，以色列的先知习惯呼求神的名（拿一6，王下五11）。神从北方兴起的外邦人，也呼求神的名（赛四一25）。神命令且愿意祂的百姓呼求祂（诗五十15，耶二九12，诗九一15，番三9，亚十三9）。这是饮于神救恩泉源的喜乐之路（赛十二3-4），也是以神为乐的享受之路（伯二七10）。以神为乐就是享受神。因此，神的子民必须天天呼求祂（诗八八9）。这是约珥关于新约禧年所豫言的欢乐实行（珥二32）。
新约里首次题起呼求主名
在新约里，彼得在五旬节那天，首次题起呼求主名（徒二21），应验了约珥的豫言。这应验是关乎神在经纶一面，将包罗万有的灵浇灌在祂所拣选的人身上，使他们能有分于新约的禧年。约珥关于神新约禧年的豫言及其应验有两面：在神那一面，祂在复活基督的升天里，将祂的灵浇灌下来；在我们这一面，我们呼求这位成就一切、达到一切并得着一切，升天之主的名。
我们这些在基督里的信徒，要有分于并享受包罗万有的基督，和祂所成就、所达到、所得着的一切，呼求祂的名是极其需要的（林前一2）。在神新约经纶里，这是一种主要的实行，使我们能享受这位经过过程的三一神，叫我们完全得救（罗十10-13）。
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Whoever Calls on the Name of the Lord Shall Be Saved (1) – Acts 2:21
The Name of the Lord Is His Person
In 2:21 Peter goes on to say, “And it shall be that everyone, whoever calls on the name of the Lord, shall be saved.” Acts 2:21 speaks of calling on the name of the Lord. The name denotes the person. Jesus is the name of the Lord, and the Spirit is his Person. When we call, “Lord Jesus,” we receive the Spirit.
The Practice and Patterns of Calling On the Lord’s Name
Calling on the name of the Lord is not a new practice in the New Testament. Today many believers do not have the practice of calling on the name of the Lord Jesus. Some who follow only traditional practices criticize those who call on the Lord’s name.
Calling on the name of the Lord began with Enosh, the third generation of mankind, in Genesis 4:26. It was continued by Job, Abraham, Isaac, Moses and the children of Israel, Samson, Samuel, David, the psalmist Asaph, the psalmist Heman, Elijah, Isaiah, Jeremiah and others. All these practiced calling on the name of the Lord in the Old Testament age. Isaiah also charged God’s seekers to call upon him (Isa. 55:6). Even the gentiles knew that the prophets of Israel used to call on the name of God (Jonah 1:6; 2 Kings 5:11). The gentile raised up by God from the north also called upon his name (Isa. 41:25). It is God’s commandment (Psa. 50:15; Jer. 29:12) and desire (Psa. 91:15; Zeph. 3:9; Zech. 13:9) that his people call on him. It is the joyful way to drink from the fountain of God’s salvation (Isa. 12:3-4), and the enjoyable way to delight oneself in God (Job 27:10), that is, to enjoy him. Hence, God’s people must call upon him daily (Psa. 88:9). It is such a jubilant practice that Joel prophesied (Joel 2:32) for the New Testament jubilee.
The First Mention of Calling on the Lord’s Name in the New Testament
In the New Testament calling on the name of the Lord is mentioned first by Peter, in Acts 2:21, on the day of Pentecost as the fulfillment of Joel’s prophecy. This fulfillment is related to God’s outpouring of the all-inclusive Spirit economically upon his chosen people so that they may participate in his New Testament jubilee. Joel’s prophecy and its fulfillment for God’s New Testament jubilee have two aspects: on God’s side, he poured out his Spirit in the ascension of the resurrected Christ; on our side, we call on the name of the ascended Lord who has accomplished all, attained unto all and obtained all.
It is vitally necessary for us, the believers in Christ, to participate in and enjoy the all-inclusive Christ with all he has accomplished, attained and obtained (1 Cor. 1:2). It is a major practice in God’s New Testament economy that we may enjoy the processed Triune God for our full salvation (Rom. 10:10-13).