The secret of the LORD is with them that fear him; and he will shew them his covenant. The secret of the Lord is with them - טוד sod, the secret assembly of the Lord is with them that fear him; many of them have a Church in their own house.
He will show them his covenant - He will let them see how great blessings he has provided for them that love him. Some refer this to the covenant of redemption by Christ Jesus.