Our joy in God is bound up with our trust in God. The two cannot be separated — not ever. Trust is the backbone of joy. And joy is the outflow of trust in one who is fully Trustworthy.
We see this connection made throughout the Bible.
The Psalmist unites trust and joy:
But let all who take refuge in you rejoice; let them ever sing for joy. (Psalm 5:11a)
The Lᴏʀᴅ is my strength and my shield; in him my heart trusts, and I am helped; my heart exults, and with my song I give thanks to him. (Psalm 28:7)
For our heart is glad in him, because we trust in his holy name. (Psalm 33:21)
And the Apostle Paul unites trust and joy:
May the God of hope fill you with all joy and pea…