Like for instance if you're breaking down a door by forcing you need to make a Strength check against the doors DC. Certain abilities will affect strength checks like a cleric with the Strength Domain. Strength Surge (Sp) : As a standard action, you can touch a creature to give it great strength. For 1 round, the target gains an enhancement bonus equal to 1/2 your cleric level (minimum +1) to melee attacks, combat maneuver checks that rely on Strength , Strength -based skills, and Strength checks. You can use this ability a number of times per day equal to 3 + your Wisdom modifier. Might of the Gods (Su) : At 8th level, you can add your cleric level as an enhancement bonus to your Strength score for a number of rounds per day equal to your cleric level. This bonus only applies on Strength checks and Strength -based skill checks . These rounds do not need to be consecutive.