But ye shall receive power, after that the holy spirit is come upon you: and ye shall be witnesses unto me both in Jerusalem, and in all Judea, and in Samaria, and unto the uttermost parts of the earth.
And when he had spoken these things, while they beheld, he was taken up; and a cloud received him out of their sight."-- Acts 1:6-9.
[310]In obedience to the command of Jesus, these faithful disciples went to Jerusalem to the place known as the upper room, and there waited.

Ten days passed and then it was that the holy spirit, the invisible power of God, was visited upon them; and true to his promise, the disciples began to understand.
[311]Jesus had now ascended on high and presented the merit of his sacrifice before Jehovah and the acceptance of this was manifested by the giving of the holy spirit to his disciples who had been his consecrated followers for three and a half years.

Doubtless the angels of heaven now began to know something about the great mystery.

What joy must have been in heaven when Jesus Christ appeared before the Father and presented the merit of his sacrifice and was received by Jehovah! Surely the heavenly host must have sung his praises.

They had beheld him triumphing over death and the grave and now exalted to a position in heaven next to the Father.