My apologies I forgot some translations actually add that in. I strongly disagree it's irrelevant though... however.
So Jesus is telling His disciples that they should not fear what their persecutors do (Stephen for example)because God will know about what they do to you? Shouldn't it be understood that God will be aware and will help them - that they will only suffer insofar as it is God's will??
Jesus, was plainly telling them, to fear God more and to confess him before men no matter what. Check the contexts in Matthew and Luke.
4 "And I say to you, My friends, do not be afraid of those who kill the body, and after that have no more that they can do.
5 "But I will warn you whom to fear: fear the One who after He has killed has authority to cast into hell; yes, I tell you, fear Him!
6 "Are not five sparrows sold for two cents? And yet not one of them is forgotten before God.
7 "Indeed, the very hairs of your head are all numbered. Do not fear
[men over God]; you are of more value than many sparrows.
8 "And I say to you, everyone who confesses Me before men, the Son of Man shall confess him also before the angels of God;
9 but he who denies Me before men shall be denied before the angels of God.
(Luk 12:4-9 NAS)
27 "What I tell you in the darkness, speak in the light; and what you hear whispered in your ear, proclaim upon the housetops.
28 "And do not fear those who kill the body, but are unable to kill the soul; but rather fear Him who is able to destroy both soul and body in hell.
29 "Are not two sparrows sold for a cent? And yet not one of them will fall to the ground apart from your Father.
30 "But the very hairs of your head are all numbered.
31 "Therefore do not fear
[men over God]; you are of more value than many sparrows.
32 "Everyone therefore who shall confess Me before men, I will also confess him before My Father who is in heaven.
33 "But whoever shall deny Me before men, I will also deny him before My Father who is in heaven.
34 "Do not think that I came to bring peace on the earth; I did not come to bring peace, but a sword. (Mat 10:27-34 NAS)
In both contexts, the subject matter is standing for God in the face of persecution, not being comforted that God won't put you through more than you can bear (we do get that elsewhere, just not here). The context is fearing God more than men, or the consequence is, being accepted by men, but denied by God. When men devalue us, God still values us—just like men devalue a sparrow, but God places value on all his creation. Though our life may seem, by other men, as worthless as a sparrow falling to the ground, that they sell for very little, it is extremely valued by God. I see no support for Divine determinism here.