ગૌર પરણાવી આપે, પણ ઘર ચલાવી આપે નહીં.

gaura paraṇāvī āpē, paṇa ghara calāvī āpē nahīṁ.

Literally: The matchmaker gets them married, but does not get the house run.
What it means: A facilitator can start a process, but they cannot sustain the daily work required to maintain it.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1923) · read from the scan by machine — the Gujarati itself is unchecked · English is machine-made and nobody has checked it yet

Heard it differently, or know we've got the sense wrong? Tell us — that is exactly the kind of correction this needs.