BROTHERS and SISTERS, each of us was given grace according to the measure of Christ’s gift. Therefore God says, “When He ascended on high, He made captivity itself a captive. He gave gifts to His people” (Psalm 68:18). When it says, “He ascended,” what does it mean but that He had also descended first into the lower parts of the earth? He Who descended is the same One Who ascended far above all the heavens, so that He might fill all things. The gifts He gave were that some would be apostles, some prophets, some evangelists, some pastors and teachers, for the perfecting of the saints, for the work of ministry, for building up the body of Christ, until all of us come to the unity of the faith and to the knowledge of the Son of God, to maturity, having reached the very fullness of Christ.
Saint John Chrysostom commenting on "the measure of Christ's gift" says the following:
If then this or that person possesses any superiority over you in any spiritual gift, do not give at it, since his labor also is greater. He who had received five talents, had five required of him, while he who had received two, brought only two, and yet received no less reward than the other. And therefore, the Apostle here also encourages the hearer on the same ground, showing that gifts are bestowed not for the honor of one above another, but for the work of the Church, "for the perfecting of the saints, for the work of ministry, for building up the body of Christ." By this the Lord shows that it is not of our own intrinsic merit that we have received more and another less, but that it is for the sake of others, as God Himself has measured it.
Father Aleksey - your friendly Singac priest