Laravel 5.5 Model query field

Search data 
Post All :: ([ 'title']); 
Post All :: ([ 'ID', 'title', 'SUBTITLE', 'published_at']); 
query id = title 1 of 
Post :: where ( 'ID',. 1) -> GET ([ 'title']); 
Post :: Find (. 1, [ 'ID', 'title', 'SUBTITLE']); 
Post :: GET ([ 'ID', ' title ',' subtitle ']) ;