swear by (something)

to strongly believe in something.

Though there's no scientific evidence for this method of finding water, some farmers swear by it.

Some teachers swear by stickers as a teaching tool and use them to teach kids everything.

• get head around something
• get head down
• get hell
• get her claws into
• get her claws into someone
• get hold of
• get hold of someone
• get hold of something
• get hold of the wrong end of the stick
• get hooks into
• get hooks into someone
• get hooks into something
• get hopes up
• get in a lather
• get in a rut
• get in gear
• get in hair
• get in on the act
• get in on the ground floor
• get in someone's hair
• get in the way
• get in the way of
• get in the way of something
• get into a huddle
• get into a lather