What God did yesterday He can do again today, but just as the seasons change so does God’s methods. Just because He led Moses and the Israelites through the sea in the past does not mean that He will do the same thing today, He may send a boat to rescue and safe you, the seas did not part, but God still saved you, in a different way. If you spoke to God about a problem that you had or have, He may not speak to you through a burning bush, but He will answer you.
The thing with human loyalty is that human-loyalties change. If a teenager meets a new love they’re very loyal until something happens which causes those loyalties to shift. And if a married couple comes across some disagreements or if one person in the relationship feels cheated then they too shift their loyalties. I prefer loyalty to that which won’t cheat or stab you in the back.