Many of us men were at one time in the Boys’ Brigade but it’s fair to say we knew little of what their motto really meant! It is taken from Hebrews 6.
“Wherein God, willing more abundantly to shew unto the heirs of promise the immutability of his counsel, confirmed it by an oath: That by two immutable things, in which it was impossible for God to lie, we might have a strong consolation, who have fled for refuge to lay hold upon the hope set before us: Which hope we have as an anchor of the soul, both sure and steadfast, and which entereth into that within the veil; Whither the forerunner is for us entered, even Jesus, made an high priest for ever after the order of Melchisedec.” Hebrews 6:17-20.
An anchor that is properly stuck fast, is something fixed and immovable guaranteeing that the ship will remain where it is. Our hope in Christ, who is already in heaven, indeed Christ himself, is our hope, our certainty that one day we will be with him. He is fixed there, reigning in glory and all the blessedness in him is promised, indeed sworn to be given us, as it was to Abraham thousands of years ago (v18).