Ephesians 4:5

One hope. Hope sprang up with God’s appeal to men’s hearts — the hope of salvation and the appearance of the Lord (Titus 2:13). It is the hope of the final consummation of the kingdom that gives a substantial basis for peace and joy, courage and good cheer. The Spirit validates this hope (cf. Eph. 1:13, 14), which, in turn, unifies believers and becomes, indeed, a “lively hope” (1 Peter 1:3). Such a hope necessarily leads to the transformed life, for “every man that hath this hope in him purifieth himself” (1 John 3:3).

Of your calling. That is, belonging to your calling as inseparably involved with it. They have hope by the very fact of their calling.