Lanefan
Victoria Rules
To some extent I've always had the gods (or at least a few of them) paying attention to the mortal world and what the party is up to.
In my first big campaign the party unknowingly and unintentionally became agents for one goddess acting against another two; the players (and characters) only found this out after 10+ years of play in the very last session when the god they'd been working for showed up and told them what they were doing - and why. But even before then, divine intervention happened albeit on a very rare basis.
In my second campaign, one of the more significant embedded adventure paths involved the rescue of a captured goddess (the 2e module "For Duty and Deity" was the climax) and thus right there the PCs ended up with a friend in high places. Long before that, I ran the "I-3 Pharoah's Tomb" adventure; the person who dropped by to give them their rewards afterwards as per the module was not Amon Ra but instead a minor god travelling in form of an old man. And not all the "rewards" were beneficial!
My current campaign has thus far been mostly based on a version of ancient Greece, whose deities constantly meddled with mortals; so having deities and immortals get involved even with low-level types hasn't been out of place at all. The immortal Discord has already taken significant interest in the PCs, they've managed to catch the Fates doing things they shouldn't, and have bent Ares' nose out of joint more than once. The only other culture they've had any real dealings with has been vaguely Celtic, another culture where the deities tend to manifest all over the place.
In any event, in an extreme situation a Cleric can try for divine intervention (I roll for this, sometimes already knowing there's no chance) and see what happens. I'll also occasionally do this in reverse: if the PCs are defeating an enemy Cleric, that person might also get divine help...in other words, it works both ways.
As a player, one example of divine intervention stands out. My namesake character Lanefan was lying half-dead in a pool of blood after losing a fight in "Tomb of the Lizard King". Barely conscious, he prayed to his god Loki for help. Loki showed up, stole a magic item - a ring, I think - from him, then took off and left him lying there! (someone independently found him before he bled to death and patched him up)
Lan-"I never did find out what that ring did"-efan
In my first big campaign the party unknowingly and unintentionally became agents for one goddess acting against another two; the players (and characters) only found this out after 10+ years of play in the very last session when the god they'd been working for showed up and told them what they were doing - and why. But even before then, divine intervention happened albeit on a very rare basis.
In my second campaign, one of the more significant embedded adventure paths involved the rescue of a captured goddess (the 2e module "For Duty and Deity" was the climax) and thus right there the PCs ended up with a friend in high places. Long before that, I ran the "I-3 Pharoah's Tomb" adventure; the person who dropped by to give them their rewards afterwards as per the module was not Amon Ra but instead a minor god travelling in form of an old man. And not all the "rewards" were beneficial!

My current campaign has thus far been mostly based on a version of ancient Greece, whose deities constantly meddled with mortals; so having deities and immortals get involved even with low-level types hasn't been out of place at all. The immortal Discord has already taken significant interest in the PCs, they've managed to catch the Fates doing things they shouldn't, and have bent Ares' nose out of joint more than once. The only other culture they've had any real dealings with has been vaguely Celtic, another culture where the deities tend to manifest all over the place.
In any event, in an extreme situation a Cleric can try for divine intervention (I roll for this, sometimes already knowing there's no chance) and see what happens. I'll also occasionally do this in reverse: if the PCs are defeating an enemy Cleric, that person might also get divine help...in other words, it works both ways.
As a player, one example of divine intervention stands out. My namesake character Lanefan was lying half-dead in a pool of blood after losing a fight in "Tomb of the Lizard King". Barely conscious, he prayed to his god Loki for help. Loki showed up, stole a magic item - a ring, I think - from him, then took off and left him lying there! (someone independently found him before he bled to death and patched him up)
Lan-"I never did find out what that ring did"-efan