“And have tasted the good word of God, and the powers of the world to come,”
King James Version (KJV)
6:5 And have tasted the good word of God - Have had a relish for, and a delight in it. And the powers of the world to come - Which every one tastes, who has an hope full of immortality. Every child that is naturally born, first sees the light, then receives and tastes proper nourishment, and partakes of the things of this world. In like manner, the apostle, comparing spiritual with natural things, speaks of one born of the Spirit, as seeing the light, tasting the sweetness, and partaking of the things of the world to come.
Heb 6:5 And have tasted the good word of God. Fed on that word which is food for the soul. The powers of the world to come. The miraculous gifts of the Spirit. The "world to come" is used in the sense of the Christian dispensation. See PNT "Heb 2:5".